textarea计算输入字符大小并限制输入

<textarea class="textarea" id="jqnr" onpropertychange="checkLength(this,800);" oninput="checkLength(this,800);">${params.bz}</textarea>

function checkLength(obj,maxlength){
        if(obj.value.length > maxlength){
            obj.value = obj.value.substring(0,maxlength);
        }
    }

textarea计算输入字符大小并限制输入,布布扣,bubuko.com

textarea计算输入字符大小并限制输入

原文：http://blog.csdn.net/w_basketboy24/article/details/22651991