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好的,所以這是我寫的第一個反應代碼。 「Hello world」代碼。第一反應代碼
但是,它似乎沒有工作。我嘗試了一些答案,但沒有一個爲我工作。
這是代碼。
<html>
<head>
<title>Some title</title>
</head>
<body>
<div id="app">
</div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.5.4/react.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.5.4/react-dom.js"></script>
<script>
ReactDOM.render(
React.DOM.h1(null, "Hello World!"),
document.getElementById("app")
);
</script>
</body>
</html>
這是我在控制檯中得到的錯誤。
Uncaught TypeError: Cannot read property 'purgeUnmountedComponents' of undefined
at clearHistory (react-dom.js:8499)
at resetMeasurements (react-dom.js:8542)
at ReactReconcileTransaction.onBeginFlush (react-dom.js:8712)
at ReactReconcileTransaction.initializeAll (react-dom.js:14848)
at ReactReconcileTransaction.perform (react-dom.js:14815)
at batchedMountComponentIntoNode (react-dom.js:9835)
at ReactDefaultBatchingStrategyTransaction.perform (react-dom.js:14816)
at Object.batchedUpdates (react-dom.js:8862)
at Object.batchedUpdates (react-dom.js:12944)
at Object._renderNewRootComponent (react-dom.js:10029)
只能是渲染調用中'React'和'DOM'之間的'.'。它應該是'ReactDOM.render()'。 – jered