96 lines
1.6 KiB
Go
96 lines
1.6 KiB
Go
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package otto
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import (
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"fmt"
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)
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func ExampleSynopsis() {
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vm := New()
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vm.Run(`
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abc = 2 + 2;
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console.log("The value of abc is " + abc); // 4
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`)
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value, _ := vm.Get("abc")
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{
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value, _ := value.ToInteger()
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fmt.Println(value)
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}
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vm.Set("def", 11)
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vm.Run(`
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console.log("The value of def is " + def);
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`)
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vm.Set("xyzzy", "Nothing happens.")
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vm.Run(`
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console.log(xyzzy.length);
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`)
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value, _ = vm.Run("xyzzy.length")
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{
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value, _ := value.ToInteger()
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fmt.Println(value)
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}
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value, err := vm.Run("abcdefghijlmnopqrstuvwxyz.length")
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fmt.Println(value)
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fmt.Println(err)
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vm.Set("sayHello", func(call FunctionCall) Value {
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fmt.Printf("Hello, %s.\n", call.Argument(0).String())
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return UndefinedValue()
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})
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vm.Set("twoPlus", func(call FunctionCall) Value {
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right, _ := call.Argument(0).ToInteger()
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result, _ := vm.ToValue(2 + right)
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return result
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})
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value, _ = vm.Run(`
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sayHello("Xyzzy");
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sayHello();
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result = twoPlus(2.0);
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`)
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fmt.Println(value)
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// Output:
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// The value of abc is 4
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// 4
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// The value of def is 11
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// 16
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// 16
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// undefined
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// ReferenceError: 'abcdefghijlmnopqrstuvwxyz' is not defined
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// Hello, Xyzzy.
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// Hello, undefined.
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// 4
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}
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func ExampleConsole() {
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vm := New()
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console := map[string]interface{}{
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"log": func(call FunctionCall) Value {
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fmt.Println("console.log:", formatForConsole(call.ArgumentList))
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return UndefinedValue()
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},
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}
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err := vm.Set("console", console)
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value, err := vm.Run(`
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console.log("Hello, World.");
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`)
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fmt.Println(value)
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fmt.Println(err)
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// Output:
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// console.log: Hello, World.
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// undefined
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// <nil>
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}
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