<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<input type="text">
<form action="">
<input type="text">
<input type="text">
<button type="reset">重置</button>
<button type="submit">提交</button>
</form>
<script>
var inputEle=document.querySelector('input')
// 1.获取焦点和失去焦点
inputEle.addEventListener('focus',function(){
console.log('inputEle获取了焦点');
})
inputEle.addEventListener('blur',function(){
console.log('inputEle丢失了焦点');
})
// 2获取正在输入的内容和改变的内容
inputEle.addEventListener('input',function(){
console.log('正在输入'+inputEle.value);
})
inputEle.addEventListener('change',function(){
console.log('改变输入值'+inputEle.value);
})
// change和input的区别:change在丢失焦点时统一显示
// 3 监听重置和提交(在form中进行)
var formEle=document.querySelector('form')
formEle.addEventListener('reset',function(event){
console.log('进行了重置操作');
event.preventDefault()
//阻止默认操作
})
formEle.addEventListener('submit',function(){
console.log('进行了提交操作');
})
</script>
</body>
</html>
标签：function,console,log,常见,表单,inputEle,事件,addEventListener,input From： https://www.cnblogs.com/theYT/p/17019630.html