wip react-example1
This commit is contained in:
Iuri Matias
parent
7666d6f6a2
commit
8eb4129af1
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subspace - react example
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===
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Simple application using a react observable component to receive a stream of emitted events. This app will deploy a test contract to **Ganache**.
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## Requirements
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- `ganache-cli`
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- `yarn` or `npm` installed.
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## Install
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In the parent folder, link the package with `yarn` or `npm`
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```
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yarn link
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```
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Then in the current folder link `@status-im/subspace`, and install the packages
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```
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yarn link "@status-im/subspace"
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yarn
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```
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## Usage
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In a terminal execute
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```
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ganache-cli
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```
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In a different session, execute
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```
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yarn run start
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```
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Browse the DApp in [http://localhost:3000](http://localhost:3000)
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*Note*: this is a simple example application that does not include error handling for the web3 connection. Be sure `ganache-cli` is running in `localhost:8545` before browsing the dapp.
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{
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"name": "observables",
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"version": "0.1.0",
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"private": true,
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"dependencies": {
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"react": "^16.9.0",
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"react-dom": "^16.9.0",
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"react-scripts": "3.1.1",
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"rxjs": "^6.5.2",
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"web3": "^1.0.0-beta.37"
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},
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"scripts": {
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"start": "react-scripts start",
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"build": "react-scripts build",
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"test": "react-scripts test",
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"eject": "react-scripts eject"
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},
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"eslintConfig": {
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"extends": "react-app"
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},
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"browserslist": {
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"production": [
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">0.2%",
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"not dead",
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"not op_mini all"
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],
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"development": [
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"last 1 chrome version",
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"last 1 firefox version",
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"last 1 safari version"
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]
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}
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}
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8" />
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<title>React App</title>
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</head>
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<body>
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<noscript>You need to enable JavaScript to run this app.</noscript>
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<div id="root"></div>
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<!--
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This HTML file is a template.
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If you open it directly in the browser, you will see an empty page.
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You can add webfonts, meta tags, or analytics to this file.
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The build step will place the bundled scripts into the <body> tag.
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To begin the development, run `npm start` or `yarn start`.
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To create a production bundle, use `npm run build` or `yarn build`.
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-->
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</body>
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</html>
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import React from "react";
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import Subspace from "@status-im/subspace";
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import { $average, $max, $min } from "@status-im/subspace";
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import { map } from 'rxjs/operators';
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import ProductComponent from "./ProductComponent";
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import web3 from './web3';
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import ProductContract from './MyContract';
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import { subscribe } from "graphql";
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let Product;
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class App extends React.Component {
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state = {
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title: "",
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minRating: 0,
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maxRating: 0,
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averageRating: 0
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};
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async componentDidMount() {
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Product = await ProductContract.getInstance(); //
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const subspace = new Subspace(web3.currentProvider);
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await subspace.init();
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const rating$ = subspace.trackEvent(Product, "Rating").pipe(map(x => parseInt(x.rating)));
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subspace.trackProperty(Product, "products", [0]).pipe().subscribe(console.dir);
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this.setState({
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averageRating: rating$.pipe($average()),
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minRating: rating$.pipe($min()),
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maxRating: rating$.pipe($max())
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});
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}
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createTrx = async () => {
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const productId = 0;
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const rating = parseInt(this.state.rating)
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window.Product = Product
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await Product.methods.rateProduct(productId, rating).send();
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};
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render() {
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return (
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<div>
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<button onClick={this.createTrx}>Rate Product</button>
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<input type="number" value={this.state.rating} onChange={(evt) => this.setState({rating: evt.target.value}) } />
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<ProductComponent
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title={this.state.title}
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maxRating={this.state.maxRating}
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minRating={this.state.minRating}
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averageRating={this.state.averageRating}
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/>
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</div>
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);
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}
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}
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export default App;
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import web3 from './web3';
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const abi = [
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{
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"constant": false,
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"inputs": [
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{
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"internalType": "string",
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"name": "title",
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"type": "string"
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}
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],
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"name": "createProduct",
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"outputs": [],
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"payable": false,
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"stateMutability": "nonpayable",
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"type": "function"
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},
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{
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"constant": false,
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"inputs": [
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{
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"internalType": "uint256",
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"name": "productId",
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"type": "uint256"
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},
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{
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"internalType": "string",
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"name": "title",
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"type": "string"
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}
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],
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"name": "editProduct",
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"outputs": [],
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"payable": false,
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"stateMutability": "nonpayable",
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"type": "function"
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},
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{
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"constant": false,
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"inputs": [
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{
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"internalType": "uint256",
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"name": "productId",
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"type": "uint256"
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},
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{
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"internalType": "uint256",
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"name": "rating",
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"type": "uint256"
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}
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],
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"name": "rateProduct",
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"outputs": [],
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"payable": false,
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"stateMutability": "nonpayable",
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"type": "function"
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},
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{
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"inputs": [],
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"payable": false,
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"stateMutability": "nonpayable",
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"type": "constructor"
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},
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{
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"payable": true,
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"stateMutability": "payable",
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"type": "fallback"
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},
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{
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"anonymous": false,
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"inputs": [
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{
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"indexed": false,
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"internalType": "uint256",
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"name": "productId",
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"type": "uint256"
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}
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],
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"name": "newProduct",
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"type": "event"
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},
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{
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"anonymous": false,
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"inputs": [
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{
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"indexed": true,
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"internalType": "uint256",
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"name": "productId",
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"type": "uint256"
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},
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{
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"indexed": false,
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"internalType": "uint256",
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"name": "rating",
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"type": "uint256"
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}
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],
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"name": "Rating",
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"type": "event"
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},
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{
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"constant": true,
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"inputs": [
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{
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"internalType": "uint256",
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"name": "",
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"type": "uint256"
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}
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],
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"name": "products",
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"outputs": [
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{
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"internalType": "string",
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"name": "title",
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"type": "string"
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}
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],
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"payable": false,
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"stateMutability": "view",
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"type": "function"
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}
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];
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const data = "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";
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const MyContract = new web3.eth.Contract(abi, {data, gas: "800000"});
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MyContract.getInstance = async() => {
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if (!web3.eth.defaultAccount) {
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const accounts = await web3.eth.getAccounts();
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web3.eth.defaultAccount = accounts[0];
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}
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const instance = await MyContract.deploy().send({from: web3.eth.defaultAccount});
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instance.options.from = web3.eth.defaultAccount;
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return instance;
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}
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export default MyContract;
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import React from "react";
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import { observe } from "@status-im/subspace/react";
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const ProductComponent = ({ maxRating, minRating, averageRating, title }) => {
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// Handle initial state when no data is available
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if (!maxRating && !minRating && !averageRating) {
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return <p>No data</p>;
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}
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return <ul>
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<li><b>title: </b> {title}</li>
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<li><b>minimum rating: </b> {minRating}</li>
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<li><b>maximum rating: </b> {maxRating}</li>
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<li><b>average rating: </b> {averageRating}</li>
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</ul>;
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};
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// MyComponent will now observe any observable prop it receives
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// and update its state whenever the observable emits an event
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export default observe(ProductComponent);
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import React from 'react';
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import ReactDOM from 'react-dom';
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import App from './App';
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import * as serviceWorker from './serviceWorker';
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ReactDOM.render(<App />, document.getElementById('root'));
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// If you want your app to work offline and load faster, you can change
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// unregister() to register() below. Note this comes with some pitfalls.
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// Learn more about service workers: https://bit.ly/CRA-PWA
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serviceWorker.unregister();
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// This optional code is used to register a service worker.
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// register() is not called by default.
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// This lets the app load faster on subsequent visits in production, and gives
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// it offline capabilities. However, it also means that developers (and users)
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// will only see deployed updates on subsequent visits to a page, after all the
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// existing tabs open on the page have been closed, since previously cached
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// resources are updated in the background.
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// To learn more about the benefits of this model and instructions on how to
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// opt-in, read https://bit.ly/CRA-PWA
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const isLocalhost = Boolean(
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window.location.hostname === 'localhost' ||
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// [::1] is the IPv6 localhost address.
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window.location.hostname === '[::1]' ||
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// 127.0.0.1/8 is considered localhost for IPv4.
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window.location.hostname.match(
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/^127(?:\.(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)){3}$/
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)
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);
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export function register(config) {
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if (process.env.NODE_ENV === 'production' && 'serviceWorker' in navigator) {
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// The URL constructor is available in all browsers that support SW.
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const publicUrl = new URL(process.env.PUBLIC_URL, window.location.href);
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if (publicUrl.origin !== window.location.origin) {
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// Our service worker won't work if PUBLIC_URL is on a different origin
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// from what our page is served on. This might happen if a CDN is used to
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// serve assets; see https://github.com/facebook/create-react-app/issues/2374
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return;
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}
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window.addEventListener('load', () => {
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const swUrl = `${process.env.PUBLIC_URL}/service-worker.js`;
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if (isLocalhost) {
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// This is running on localhost. Let's check if a service worker still exists or not.
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checkValidServiceWorker(swUrl, config);
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// Add some additional logging to localhost, pointing developers to the
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// service worker/PWA documentation.
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navigator.serviceWorker.ready.then(() => {
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console.log(
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'This web app is being served cache-first by a service ' +
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'worker. To learn more, visit https://bit.ly/CRA-PWA'
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);
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});
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} else {
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// Is not localhost. Just register service worker
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registerValidSW(swUrl, config);
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}
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});
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}
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}
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function registerValidSW(swUrl, config) {
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navigator.serviceWorker
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.register(swUrl)
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.then(registration => {
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registration.onupdatefound = () => {
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const installingWorker = registration.installing;
|
||||
if (installingWorker == null) {
|
||||
return;
|
||||
}
|
||||
installingWorker.onstatechange = () => {
|
||||
if (installingWorker.state === 'installed') {
|
||||
if (navigator.serviceWorker.controller) {
|
||||
// At this point, the updated precached content has been fetched,
|
||||
// but the previous service worker will still serve the older
|
||||
// content until all client tabs are closed.
|
||||
console.log(
|
||||
'New content is available and will be used when all ' +
|
||||
'tabs for this page are closed. See https://bit.ly/CRA-PWA.'
|
||||
);
|
||||
|
||||
// Execute callback
|
||||
if (config && config.onUpdate) {
|
||||
config.onUpdate(registration);
|
||||
}
|
||||
} else {
|
||||
// At this point, everything has been precached.
|
||||
// It's the perfect time to display a
|
||||
// "Content is cached for offline use." message.
|
||||
console.log('Content is cached for offline use.');
|
||||
|
||||
// Execute callback
|
||||
if (config && config.onSuccess) {
|
||||
config.onSuccess(registration);
|
||||
}
|
||||
}
|
||||
}
|
||||
};
|
||||
};
|
||||
})
|
||||
.catch(error => {
|
||||
console.error('Error during service worker registration:', error);
|
||||
});
|
||||
}
|
||||
|
||||
function checkValidServiceWorker(swUrl, config) {
|
||||
// Check if the service worker can be found. If it can't reload the page.
|
||||
fetch(swUrl)
|
||||
.then(response => {
|
||||
// Ensure service worker exists, and that we really are getting a JS file.
|
||||
const contentType = response.headers.get('content-type');
|
||||
if (
|
||||
response.status === 404 ||
|
||||
(contentType != null && contentType.indexOf('javascript') === -1)
|
||||
) {
|
||||
// No service worker found. Probably a different app. Reload the page.
|
||||
navigator.serviceWorker.ready.then(registration => {
|
||||
registration.unregister().then(() => {
|
||||
window.location.reload();
|
||||
});
|
||||
});
|
||||
} else {
|
||||
// Service worker found. Proceed as normal.
|
||||
registerValidSW(swUrl, config);
|
||||
}
|
||||
})
|
||||
.catch(() => {
|
||||
console.log(
|
||||
'No internet connection found. App is running in offline mode.'
|
||||
);
|
||||
});
|
||||
}
|
||||
|
||||
export function unregister() {
|
||||
if ('serviceWorker' in navigator) {
|
||||
navigator.serviceWorker.ready.then(registration => {
|
||||
registration.unregister();
|
||||
});
|
||||
}
|
||||
}
|
||||
|
|
@ -0,0 +1,5 @@
|
|||
import Web3 from 'web3';
|
||||
|
||||
const web3 = new Web3("ws://localhost:8545");
|
||||
|
||||
export default web3;
|
||||
File diff suppressed because it is too large
Load Diff
File diff suppressed because it is too large
Load Diff
|
|
@ -2858,7 +2858,7 @@ css-blank-pseudo@^0.1.4:
|
|||
dependencies:
|
||||
postcss "^7.0.5"
|
||||
|
||||
css-color-names@0.0.4, css-color-names@^0.0.4:
|
||||
css-color-names@0.0.4:
|
||||
version "0.0.4"
|
||||
resolved "https://registry.yarnpkg.com/css-color-names/-/css-color-names-0.0.4.tgz#808adc2e79cf84738069b646cb20ec27beb629e0"
|
||||
integrity sha1-gIrcLnnPhHOAabZGyyDsJ762KeA=
|
||||
|
|
@ -4793,11 +4793,6 @@ he@1.2.x:
|
|||
resolved "https://registry.yarnpkg.com/he/-/he-1.2.0.tgz#84ae65fa7eafb165fddb61566ae14baf05664f0f"
|
||||
integrity sha512-F/1DnUGPopORZi0ni+CvrCgHQ5FyEAHRLSApuYWMmrbSwoN2Mn/7k+Gl38gJnR7yyDZk6WLXwiGod1JOWNDKGw==
|
||||
|
||||
hex-color-regex@^1.1.0:
|
||||
version "1.1.0"
|
||||
resolved "https://registry.yarnpkg.com/hex-color-regex/-/hex-color-regex-1.1.0.tgz#4c06fccb4602fe2602b3c93df82d7e7dbf1a8a8e"
|
||||
integrity sha512-l9sfDFsuqtOqKDsQdqrMRk0U85RZc0RtOR9yPI7mRVOa4FsR/BVnZ0shmQRM96Ji99kYZP/7hn1cedc1+ApsTQ==
|
||||
|
||||
hmac-drbg@^1.0.0:
|
||||
version "1.0.1"
|
||||
resolved "https://registry.yarnpkg.com/hmac-drbg/-/hmac-drbg-1.0.1.tgz#d2745701025a6c775a6c545793ed502fc0c649a1"
|
||||
|
|
@ -4822,16 +4817,6 @@ hpack.js@^2.1.6:
|
|||
readable-stream "^2.0.1"
|
||||
wbuf "^1.1.0"
|
||||
|
||||
hsl-regex@^1.0.0:
|
||||
version "1.0.0"
|
||||
resolved "https://registry.yarnpkg.com/hsl-regex/-/hsl-regex-1.0.0.tgz#d49330c789ed819e276a4c0d272dffa30b18fe6e"
|
||||
integrity sha1-1JMwx4ntgZ4nakwNJy3/owsY/m4=
|
||||
|
||||
hsla-regex@^1.0.0:
|
||||
version "1.0.0"
|
||||
resolved "https://registry.yarnpkg.com/hsla-regex/-/hsla-regex-1.0.0.tgz#c1ce7a3168c8c6614033a4b5f7877f3b225f9c38"
|
||||
integrity sha1-wc56MWjIxmFAM6S194d/OyJfnDg=
|
||||
|
||||
html-comment-regex@^1.1.0:
|
||||
version "1.1.2"
|
||||
resolved "https://registry.yarnpkg.com/html-comment-regex/-/html-comment-regex-1.1.2.tgz#97d4688aeb5c81886a364faa0cad1dda14d433a7"
|
||||
|
|
@ -5257,6 +5242,13 @@ is-color-stop@^1.0.0:
|
|||
version "1.1.0"
|
||||
resolved "https://registry.yarnpkg.com/is-color-stop/-/is-color-stop-1.1.0.tgz#cfff471aee4dd5c9e158598fbe12967b5cdad345"
|
||||
integrity sha1-z/9HGu5N1cnhWFmPvhKWe1za00U=
|
||||
dependencies:
|
||||
css-color-names "^0.0.4"
|
||||
hex-color-regex "^1.1.0"
|
||||
hsl-regex "^1.0.0"
|
||||
hsla-regex "^1.0.0"
|
||||
rgb-regex "^1.0.1"
|
||||
rgba-regex "^1.0.0"
|
||||
|
||||
is-data-descriptor@^0.1.4:
|
||||
version "0.1.4"
|
||||
|
|
@ -8936,16 +8928,6 @@ rework@1.0.1:
|
|||
convert-source-map "^0.3.3"
|
||||
css "^2.0.0"
|
||||
|
||||
rgb-regex@^1.0.1:
|
||||
version "1.0.1"
|
||||
resolved "https://registry.yarnpkg.com/rgb-regex/-/rgb-regex-1.0.1.tgz#c0e0d6882df0e23be254a475e8edd41915feaeb1"
|
||||
integrity sha1-wODWiC3w4jviVKR16O3UGRX+rrE=
|
||||
|
||||
rgba-regex@^1.0.0:
|
||||
version "1.0.0"
|
||||
resolved "https://registry.yarnpkg.com/rgba-regex/-/rgba-regex-1.0.0.tgz#43374e2e2ca0968b0ef1523460b7d730ff22eeb3"
|
||||
integrity sha1-QzdOLiyglosO8VI0YLfXMP8i7rM=
|
||||
|
||||
rimraf@2.6.3:
|
||||
version "2.6.3"
|
||||
resolved "https://registry.yarnpkg.com/rimraf/-/rimraf-2.6.3.tgz#b2d104fe0d8fb27cf9e0a1cda8262dd3833c6cab"
|
||||
|
|
|
|||
|
|
@ -42,6 +42,47 @@ export function $average(cb) {
|
|||
);
|
||||
}
|
||||
|
||||
export function $max(cb) {
|
||||
return pipe(
|
||||
scan((acc, curr) => {
|
||||
let currentValue;
|
||||
if (typeof cb === 'string' || cb instanceof String){
|
||||
currentValue = curr[cb];
|
||||
} else if(typeof cb === "function") {
|
||||
currentValue = cb(curr);
|
||||
} else {
|
||||
currentValue = curr;
|
||||
}
|
||||
|
||||
if (currentValue > acc) return currentValue;
|
||||
return acc;
|
||||
})
|
||||
);
|
||||
}
|
||||
|
||||
export function $min(cb) {
|
||||
return pipe(
|
||||
scan((acc, curr) => {
|
||||
let currentValue;
|
||||
if (typeof cb === 'string' || cb instanceof String){
|
||||
currentValue = curr[cb];
|
||||
} else if(typeof cb === "function") {
|
||||
currentValue = cb(curr);
|
||||
} else {
|
||||
currentValue = curr;
|
||||
}
|
||||
console.dir("===========");
|
||||
console.dir(currentValue);
|
||||
console.dir(acc);
|
||||
console.dir(currentValue <= acc);
|
||||
console.dir("===========");
|
||||
|
||||
if (currentValue < acc) return currentValue;
|
||||
return acc;
|
||||
})
|
||||
);
|
||||
}
|
||||
|
||||
/*
|
||||
of(10, 3, 4)
|
||||
.pipe($average())
|
||||
|
|
|
|||
Loading…
Reference in New Issue