jquery trigger

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jquery trigger

asked Feb 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

jquery trigger

<html>
<head>
<script type="text/javascript" src="/jquery/jquery.js"></script>
<script type="text/javascript">
$(document).ready(function(){
  $("input").select(function(){
    console.log(123)
    $("input").after("文本被选中！");
  });
  $("button").click(function(){
    $("input").trigger("select");
  });
});
</script>
</head>
<body>
<input type="text" name="FirstName" value="Hello World" />
<br />
<button>激活 input 域的 select 事件</button>
</body>
</html>

这个为什么点击按钮执行三次，手动选中就执行一次

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1 Answer

深蓝 · Answer 1 · 2021-02-06T01:04:29+0000

方法一：

        $("button").click(function() {
            $("input").triggerHandler("select");
        });

triggerHandler和trigger的区别楼主请自行百度

方法二：

        $("input").select(function(e) {
            e.preventDefault();//阻止默认事件
            console.log(123)
            $("input").after("文本被选中！");
        });

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