控制文本框中输入字体限制
html:
<textarea rows="5" class="form-control col-sm-12" id="content"></textarea>
<span id="personal-info" class="mg-r-5">0/140</span>
javascript:
$(document).ready(function () {
//输入前内容
var inputBeforeContent = "";
$("#content").bind('input propertychange focus blur', function () {
var $this = $(this);
var _val = $this.val();
var maxlength = 140;
$("#personal-info").text(_val.length + "/140");
if (_val.length >= maxlength) {
$this.val(inputBeforeContent);
} else {
inputBeforeContent = _val;
}
});
})
显示效果:
![](https://img2020.cnblogs.com/blog/1523891/202007/1523891-20200711165815283-77139014.png)