Various commonly used JS function arrangement


Js gets the page address parameter


function getUrlPara(paraName)
{
var sUrl = location.href;
var sReg = "(?://?|&){1}" + paraName + "=([^&]*)"
var re = new RegExp(sReg, "gi");
re.exec(sUrl);
return RegExp.$1;
}

Address the jump


var pn = $("#gotopagenum").val();//#gotopagenum is the id attribute of the text box
location.href = "NewList.aspx?pagenum="+pn;//Location.href implements a jump to the client page

Micrometer level


function Convert(money)
{
var s = money; //Get the decimal data
s += "";
if (s.indexOf(".") == -1) s += ".00"; //If there is no decimal point, add a decimal point and 00
if (/.d$/.test(s)) s += "0"; //Regular judgment
while (/d{4}(.|,)/.test(s)) //If the conditions are met, the substitution is made
s = s.replace(/(d)(d{3}(.|,))/, "$1,$2"); //Add one every three bits
return s;
}

Determine whether or not the number


function IsNumeric(txt) {
if (txt == "") {
return false;
}

if (txt.indexOf(",") > 0) {
txt = txt.replace(",", "");
}

if (isNaN(txt)) {
return false;
}
else {
return true;
}
}

Format the number into two decimal places


function changeTwoDecimal_f(x) {
var f_x = parseFloat(x);
if (isNaN(f_x)) {
alert('function:changeTwoDecimal->parameter error');
return false;
}
f_x = Math.round(f_x * 100) / 100;
var s_x = f_x.toString();
var pos_decimal = s_x.indexOf('.');
if (pos_decimal < 0) {
pos_decimal = s_x.length;
s_x += '.';
}
while (s_x.length <= pos_decimal + 2) {
s_x += '0';
}
return s_x;
}

ParseFloat parseInt, Js function for number operation

Js current date yyyy-mm-dd preset query conditions


var now = new Date();
var year = now.getYear();

if (now.getYear() < 1900) {
year = now.getYear() + 1900;
}

var month = now.getMonth() + 1;
var day = now.getDate();

if (month < 10) month = "0" + month;
if (day < 10) day = "0" + day;

$("#txtDate1").val(year.toString() + "-" + month.toString() + "-01");
$("#txtDate2").val(year.toString() + "-" + month.toString() + "-" + day.toString());

Js gets the timestamp and replaces the Guid in some cases


function NowTimeCode()
{
var Result="";

var now = new Date();

var year = now.getYear();

if (now.getYear() < 1900) {
year = now.getYear() + 1900;
}

var month = now.getMonth() + 1;
var day = now.getDate();
var hour = now.getHours();
var minutes = now.getMinutes();
var second = now.getSeconds();
var millisecond = now.getMilliseconds();

if (month < 10) month = "0" + month;
if (day < 10) day = "0"+ day;
if (hour < 10) hour = "0"+ hour;
if (minutes < 10) minutes = "0"+ minutes;
if (second < 10) second = "0"+ second;

if (millisecond < 10)
millisecond = "00"+ millisecond;
else
{
if (millisecond < 100)
{
millisecond = "0"+ millisecond;
}
}

Result = year.toString() + month.toString() + day.toString() + hour.toString() + minutes.toString() + second.toString() + millisecond.toString();

return Result;

}