In this article, we will share with you the front-end js two-way data binding, hoping it will be helpful to everyone.
<html>
<head>
<title>textBind</title>
</head>
<body>
<input type="text" name="infoInsert">
<p id="infoShow"></p>
<script type="text/javascript">
var obj = {
seeYou: 'Hello'
};
Object.defineProperty(obj, 'infoBind', {
get: function () {
return this.seeYou;
},
set: function (newValue) {
document.getElementById('infoShow').innerText = newValue;
document.getElementsByName('infoInsert')[0].value = newValue;
}
});
document.getElementsByName('infoInsert')[0].addEventListener('keyup', function () {
obj.infoBind = this.value;
});
</script>
</body>
</html>Through the above code, it is not difficult to see that the underlying implementation principle of two-way data binding used in the framework is implemented through the defineProperty attribute in ES5.
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