HTML
<textarea class="wishContent" placeholder="请输入不超过15个字" maxlength="15"> </textarea>
<span class="wordsNum">0/15</span>
Script
var checkStrLengths = function (str, maxLength) {
var maxLength = maxLength;
var result = 0;
if (str && str.length > maxLength) {
result = maxLength;
return result;
} else {
result = str.length;
}
return result;
}
//监听输入
$(".wishContent").on('input propertychange', function () {
//获取输入内容
var userDesc = $(this).val();
//判断字数
var len;
if (userDesc) {
len = checkStrLengths(userDesc, 15);
} else {
len = 0
}
//显示字数
$(".wordsNum").html(len + '/15');
});
