js实现格式化金额,字符,时间的方法_javascript技巧

//金额转换成大写
function toDaX(num){
//金额大小写转换
if (isNaN(num) || num > Math.pow(10, 12))
return "";
var cn = "零壹贰叁肆伍陆柒捌玖";
var unit = new Array("拾佰仟", "分角");
var unit1 = new Array("万亿", "");
if(parseFloat(num)==0||num==''){
return "零圆";
}
var numArray = num.toString().split(".");
var start = new Array(numArray[0].length - 1, 2);
function toChinese(num, index) {
var num = num.replace(/\d/g, function($1) {
return cn.charAt($1)+ unit[index].charAt(start-- % 4 ? start % 4 : -1);
});
return num;
}
for ( var i = 0; i < numArray.length; i++) {
var tmp = "";
for ( var j = 0; j * 4 < numArray[i].length; j++) {
var strIndex = numArray[i].length - (j + 1) * 4;
var str = numArray[i].substring(strIndex, strIndex + 4);
var start = i ? 2 : str.length - 1;
var tmp1 = toChinese(str, i);
tmp1 = tmp1.replace(/(零.)+/g, "零").replace(/零+$/, "");
tmp1 = tmp1.replace(/^壹拾/, "拾");
tmp = (tmp1 + unit1[i].charAt(j - 1)) + tmp;
}
numArray[i] = tmp;
}
numArray[1] = numArray[1] ? numArray[1] : "";
numArray[0] = numArray[0] ? numArray[0] + "元" : numArray[0],numArray[1] = numArray[1].replace(/^零+/, "");
numArray[1] = numArray[1].match(/分/) ? numArray[1] : numArray[1] + "整";
return numArray[0] + numArray[1];
}
/** 金额格式化 添加“,”分隔符 */

function addComma(money) {
if(money==""){
return "";
}
if(money){
money = money.trim();
}
if(/[^0-9\.\-\+]/.test(money)){
return money;
}
money = parseFloat(money) + "";
if('NaN' == money){
return "0.00";
}
var money_flag = "";
if(money.indexOf("-") != -1){
money = money.replace(/-/g,"");
money_flag = "-";
}

money=money.replace(/^(\d*)$/,"$1.");
money=(money+"00").replace(/(\d*\.\d\d)\d*/,"$1");
money=money.replace(".",",");
var re=/(\d)(\d{3},)/;
while(re.test(money)){
money=money.replace(re,"$1,$2");
}
money=money.replace(/,(\d\d)$/,".$1");
var money = money_flag+""+money.replace(/^\./,"0.")
return money;
}

/** 金额格式化 去“,”分隔符 */
function delComma(value) {
var rtnVal = value + "";
return rtnVal.replace(/,/g,"");
}

/**
* 金额格式化 字符串添加小数点
*/
function addPoint(money){
if(/[^0-9\.]/.test(money)){
return money;
}

if(money.length < 3 || money.indexOf(".") > -1){
return money;
}

return money.substring(0,money.length - 2) + "." + money.substring(money.length - 2,money.length);
}
/**
* 金额格式化 数字去小数点
*/
function removePoint(money){
if(/[^0-9\.]/.test(money)){
return money;
}

var valueFloat = parseFloat(money) * 100;
var valueInt = parseInt(valueFloat);
return valueInt;
}
/* 格式化小数点后两位数字 以百分比显示 */
function addPercent(str){
var percent = Math.floor(str * 100) / 100;
percent=(percent.toFixed(2));
return percent+'%';
}

/** 字符格式化 添加 空格 分隔符 */
function addSpace(value) {
if(value == null || value == ""){
return "";
}

var value = value + "";
var tmpStr = "";
while (value.length > 4) {
tmpStr = tmpStr + value.substring(0,4)+ " ";
value = value.substring(4,value.length);
}
tmpStr = tmpStr + value;
return tmpStr;
}

/** 字符格式化 去除 空格 分隔符 */
function removeSpace(value) {
var rtnVal = value + "";
return rtnVal.replace(/ /g,"");
}

// 格式化日期时间字符串
// YYYYMMDD-》YYYY-MM-DD
// YYYYMMDDhhmmss-》YYYY-MM-DD hh:mm:ss
function formatDatetime(oldvalue){
if(oldvalue == null){
return "";
}else if(oldvalue.length == 8){
return oldvalue.substring(0,4) +
"-" + oldvalue.substring(4,6) +
"-" + oldvalue.substring(6,8);
}else if(oldvalue.length == 14){
return oldvalue.substring(0,4) +
"-" + oldvalue.substring(4,6) +
"-" + oldvalue.substring(6,8) +

" " + oldvalue.substring(8,10) +
":" + oldvalue.substring(10,12) +
":" + oldvalue.substring(12,14);
}else if(oldvalue.length == 6){
return oldvalue.substring(0,2) +
":" + oldvalue.substring(2,4) +
":" + oldvalue.substring(4,6);
}else{
return oldvalue;
}
}

function StringToDate(str){
var datainfo=str.split('-');
return new Date(datainfo[0],datainfo[1],datainfo[2]);
}