反应 onClick 事件 [英] React onClick event

问题描述

我遗漏了一些东西.这是一个非常简单的 hello world，目标是触发 onClick 警报事件.该事件会在页面加载时触发，但在我单击按钮时不会触发.我很感激你的帮助.这是一个 jsFiddle，可以更容易地查看:jsFiddle

I'm missing something. Here's a very simple hello world, the goal is to just fire an alert event onClick. The event does fire when the page loads, but not when I click the button. I appreciate the help. Here's a jsFiddle to make it easier to see: jsFiddle

var Hello = React.createClass({
render: function() {
    return <button onClick={alert("Hello World!")}>
               Click Me
            </button>;
}
React.render(<Hello />, document.getElementById('container'));

推荐答案

我认为您的做法是错误的，因为 ReactJS 只是 JavaScript 我认为您触发此事件的方式行不通.你的 onClick 应该像这样触发一个附加到你的 React 元素的函数.

I think you're going about this wrong, because ReactJS is just JavaScript I don't think your way of firing this event will work. Your onClick should fire a function attached to your React element like so.

var Hello = React.createClass({
    myClick: function () {
        alert("Hello World!");
    },
    render: function() {
        return <button onClick={this.myClick}>
                   Click Me
                </button>;
    }
});

React.render(<Hello />, document.getElementById('container'));

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