反应 onClick 不触发

Question

The following code doesn't work. The onClick events are never fired but I see no errors in browserify or console.

var React = require('react');

var Button = React.createClass({
  render: function() {
    return (
      <div className="Button">
        <span className="left" onclick={function() {alert("left")}}>Left</span>
        <span className="right" onclick={function() {alert("right")}}>Right</span>
        <span className="middle" onclick={function() {alert("middle")}}>Middle</span>
      </div>
    );
  }
});

module.exports=Button;

I use alert just for testing small CSS. Why isn't onclick firing?

Answer 1

You have a typo in your example. Use 'onClick' instead of 'onclick'.

<span className="left" onClick={function() {alert("left")}}>Left</span>

see jsfiddle for a working example - https://jsfiddle.net/Ltdc8qpr/1/

Answer 2

这里使用箭头函数语法，使用 onClick 处理程序触发事件。

<span className="left" onClick={() => {alert("left")}}>Left</span>

Answer 3

I was facing the same issue. The problem was that the <span> tag was in the top-left corner and the alert would only fire when I would click the top-left corner. Not any other space.

I changed <span> to <div> and it worked.