Sort out common JS Functions

Sort out common JS Functions

Js get page address parameters

The Code is as follows:

Function getUrlPara (paraName)

{

Var sUrl = location. href;

Var sReg = "(? ://? | &) {1} "+ paraName +" = ([^ &] *)"

Var re = new RegExp (sReg, "gi ");

Re.exe c (sUrl );

Return RegExp. $1;

}

Address jump

The Code is as follows:

Var pn = $ ("# gotopagenum"). val (); // # gotopagenum is the id attribute of the text box.

Location. href = "NewList. aspx? Pagenum = "+ pn; // location. href: Jump to the client page

Sub-location

The Code is as follows:

Function Convert (money)

{

Var s = money; // obtain decimal data

S + = "";

If (s. indexOf (".") =-1) s + = ". 00"; // if there is no decimal point, add the following decimal points and 00

If (/. d $/. test (s) s + = "0"; // Regular Expression

While (/d {4} (. |,)/. test (s) // replace

S = s. replace (/(d) (d {3} (. |,)/, "$1, $2"); // Add

Return s;

}

Determines whether a number is used.

The Code is as follows:

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 with two decimal places

The Code is as follows:

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;

}

The number calculation function parseFloat parseInt in Js.

Preset query conditions for the current js date yyyy-mm-dd

The Code is as follows:

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, replacing the Guid in some scenarios

The Code is as follows:

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;

}