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Clarify installation

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chris⚡ 2017-07-17 17:57:55 +02:00 committed by GitHub
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@ -14,16 +14,26 @@ re-frame has instrumentation to collect traces throughout various important poin
## Getting started
Compile your app with `:closure-defines: "re_frame.trace.trace_enabled_QMARK_" true` and `:preloads [day8.re-frame.trace.preload]`, e.g.
Compile your app with `:closure-defines: "re_frame.trace.trace_enabled_QMARK_" true` and `:preloads [day8.re-frame.trace.preload]`.
```cljs
{:builds
[{:id "dev"
:source-paths ["src" "dev"]
:compiler {...
:closure-defines {"re_frame.trace.trace_enabled_QMARK_" true}
:preloads [day8.re-frame.trace.preload]}}]}
```
So when using leiningen, add the following to `project.clj`:
- `[day8.re-frame/trace "0.1.0"]` in `:dev :dependencies`
```cljs
{:dev
{:dependencies [day8.re-frame/trace "0.1.0"] }}
```
- `:closure-defines: "re_frame.trace.trace_enabled_QMARK_" true` and `:preloads [day8.re-frame.trace.preload]` in `:compiler`
```cljs
{:builds
[{:id "dev"
:source-paths ["src" "dev"]
:compiler {...
:closure-defines {"re_frame.trace.trace_enabled_QMARK_" true}
:preloads [day8.re-frame.trace.preload]}}]}
```
By default, re-frame tracing is compiled out, so it won't impose a performance cost in production. The trade-off here is that you need to explicitly enable it in development.