用于页面上格式化数字字符串,此代码为工作时所需,留作笔记,比较常用。
/**
* author: xg君
* 描述: 格式化数字字符串,格式化小数位
* obj为需要格式的对象(例如:input标签)
* maxLength 为最大小数位长度
* minLength 为最小小数位长度
*/
function toFloat(id,maxLength,minLength){ var htmlVal = $("#"+id).val(); var index = htmlVal.indexOf("."); var result = ""; if(index > 0){ htmlVal = htmlVal.replaceAll("0+?$",""); var len = htmlVal.substring(index+1).length; if(len > 2){ if(len > 6){ result = Number(htmlVal).toFixed(maxLength); result = reToFloat(result,maxLength,minLength); }else{ result = Number(htmlVal).toFixed(len); result = result.replaceAll("0+?$",""); } }else { result = Number(htmlVal).toFixed(minLength); } }else { result = Number(htmlVal).toFixed(minLength); } $("#"+id).val(result); } function reToFloat(htmlVal,maxLength,minLength){ var index = htmlVal.indexOf("."); var result = ""; if(index > 0){ htmlVal = htmlVal.replaceAll("0+?$",""); var len = htmlVal.substring(index+1).length; if(len > 2){ if(len > 6){ result = Number(htmlVal).toFixed(maxLength); }else{ result = Number(htmlVal).toFixed(len); result = result.replaceAll("0+?$",""); } }else { result = Number(htmlVal).toFixed(minLength); } }else { result = Number(htmlVal).toFixed(minLength); } return result; }