JS输入框统计文字数量
$('#articleTitle').bind('input propertychange',function () { var a = $(this).val().length; if(a>30){ var val = $(this).val().substr(0,30); $(this).val(val); $('#helpBlock2').html(30); }else{ $('#helpBlock2').html(a); } });
<div class="row" > <!--第三排 13--> <div class="col-md-1 text-right"> 标题: </div> <div class="col-md-6 list-inline"> <input class="form-control input-sm" id="articleTitle" type="text" name="title" value="" placeholder="新闻标题,最大30字" /> </div> <div style="margin-top:5px;font-size: 14px;"> <span id="helpBlock2" style="color: red;">0</span><span>/30字</span> </div> </div>
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