只需加載分析如下:
import React from 'react';
import ReactDOM from 'react-dom';
import App from './App';
if (process.env.MY_SEGMENT_KEY) {
window.analytics.load(process.env.MY_SEGMENT_KEY);
}
ReactDOM.render(
<App />,
document.getElementById('root')
);
你的index.html文件應該看起來像:
<!DOCTYPE html>
<html>
<head>
...
<title>My App</title>
<script type="text/javascript">
!function(){var analytics=window.analytics=window.analytics||[];if(!analytics.initialize)if(analytics.invoked)window.console&&console.error&&console.error("Segment snippet included twice.");else{analytics.invoked=!0;analytics.methods=["trackSubmit","trackClick","trackLink","trackForm","pageview","identify","reset","group","track","ready","alias","debug","page","once","off","on"];analytics.factory=function(t){return function(){var e=Array.prototype.slice.call(arguments);e.unshift(t);analytics.push(e);return analytics}};for(var t=0;t<analytics.methods.length;t++){var e=analytics.methods[t];analytics[e]=analytics.factory(e)}analytics.load=function(t){var e=document.createElement("script");e.type="text/javascript";e.async=!0;e.src=("https:"===document.location.protocol?"https://":"http://")+"cdn.segment.com/analytics.js/v1/"+t+"/analytics.min.js";var n=document.getElementsByTagName("script")[0];n.parentNode.insertBefore(e,n)};analytics.SNIPPET_VERSION="4.0.0";
}}();
</script>
</head>
<body>
<div id="root">
</div>
</body>
</html>
[中的WebPack傳遞環境相關的變量]的可能的複製( http://stackoverflow.com/questions/30030031/passing-environment-dependent-variables-in-webpack) –
@Daniel_L我可以通過變量沒有問題,問題是讓他們在index.html(這不是應用程序入口點) – ajmajmajma
更容易使用腳本標籤或hav公開全局e你的webpack配置本身是有條件的基於node_env –