jQuery实现限制textarea文本框输入字符数量的方法
本文实例讲述了jQuery实现限制textarea文本框输入字符数量的方法。分享给大家供大家参考。具体实现方法如下:
(function($) { $.fn.extend( { limiter: function(limit, elem) { $(this).on("keyup focus", function() { setCount(this, elem); }); function setCount(src, elem) { var chars = src.value.length; if (chars > limit) { src.value = src.value.substr(0, limit); chars = limit; } elem.html( limit - chars ); } setCount($(this)[0], elem); } }); })(jQuery); //To setup the limiter, simply include a call similar to the one below: var elem = $("#chars"); $("#text").limiter(100, elem);
希望本文所述对大家的jQuery程序设计有所帮助。
相关推荐
EdwardSiCong 2020-11-23
85477104 2020-11-17
hhanbj 2020-11-17
81427005 2020-11-11
seoppt 2020-09-13
honeyth 2020-09-13
WRITEFORSHARE 2020-09-13
84483065 2020-09-11
momode 2020-09-11
85477104 2020-08-15
83510998 2020-08-08
82550495 2020-08-03
tthappyer 2020-08-03
84901334 2020-07-28
tthappyer 2020-07-25
TONIYH 2020-07-22
tztzyzyz 2020-07-20
83510998 2020-07-18
81463166 2020-07-17