Share several JavaScript number formatting functions

JavaScript does not have any built-in formatting functions, and here we've collected 5 JavaScript number format functions via Google, which we hope will bring convenience to all of our web development.

Decimal rounding

These two pieces of code help you to rounded up, for you to display prices or orders are more useful:

Code 1:

The code is as follows

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function currencyformatted (amount) { var i = parsefloat (amount); if (isNaN (i)) {i = 0.00;} var minus = '; if (I < 0) {minus = '-';} i = Math.Abs (i); i = parseint ((i +. 005) * 100); i = i/100; s = new String (i); if (S.indexof ('. ') < 0) {s + = '. 00 ';} if (S.indexof ('. ') = = (S.length-2)) {s + = ' 0 ';} s = minus + S; return s; } /** * usage:currencyformatted (12345.678); * result:12345.68 **/

Code 2:

The code is as follows

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function Format_number (pnumber,decimals) { if (isNaN (Pnumber)) {return 0}; if (pnumber== ') {return 0}; var snum = new String (pnumber); var sec = Snum.split ('. '); var whole = parsefloat (sec[0]); var result = '; if (Sec.length > 1) { var dec = new String (sec[1]); Dec = String (parsefloat (sec[1))/math.pow ((dec.length-decimals)); Dec = String (whole + math.round (parsefloat (DEC))/math.pow (10,decimals)); var dot = dec.indexof ('. '); if (dot = = 1) { Dec + = '. '; Dot = Dec.indexof ('. '); } while (dec.length <= dot + decimals) {Dec = ' 0 ';} result = Dec; } else{ var dot; var dec = new String (whole); Dec + = '. '; Dot = Dec.indexof ('. '); while (dec.length <= dot + decimals) {Dec = ' 0 ';} result = Dec; } return result; } /** * Usage:format_number (12345.678, 2); * result:12345.68 **/

Add comma

These two pieces of code help you add commas to every three-digit number, which makes large numbers easier to see.

Code 1:

The code is as follows

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function commaformatted (amount) { var delimiter = ","; Replace comma if desired Amount = new String (amount); var a = Amount.split ('. ', 2) var d = a[1]; var i = parseint (a[0]); if (isNaN (i)) {return ';} var minus = '; if (I < 0) {minus = '-';} i = Math.Abs (i); var n = new String (i); var a = []; while (N.length > 3) { var nn = n.substr (n.length-3); A.unshift (NN); n = n.substr (0,n.length-3); } if (N.length > 0) {a.unshift (n);} n = a.join (delimiter); if (D.length < 1) {amount = n;} else {amount = n + '. ' + D;} Amount = minus + amount; return amount; } /** * usage:commaformatted (12345678); * result:12,345,678 **/ Code 2: function Addcommas (NSTR) { Nstr + = '; var x = Nstr.split ('. '); var x1 = x[0]; var x2 = x.length >; 1? '. ' + x[1]: '; var rgx =/(d+) (d{3})/; while (Rgx.test (x1)) { X1 = X1.replace (RGX, ' $ ' + ', ' + ' $ '); } return x1 + x2; } /** * Usage:addcommas (12345678); * result:12,345,678 **/

Number formatting, from PHP

This JavaScript code feature is designed from PHP's Nubmer_format functionality. can be rounded and comma delimited. And you can customize the 10-binary partition.

The code is as follows

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function Number_format (number, decimals, Dec_point, thousands_sep) { Number = (number + '). Replace (/[^0-9+-ee.] /g, ""); var n =!isfinite (+number)? 0: +number, Prec =!isfinite (+decimals)? 0:math.abs (decimals), Sep = (typeof thousands_sep = = ' undefined ')? ', ': Thousands_sep, Dec = (typeof dec_point = = ' undefined ')? '. ': Dec_point, s = ', Tofixedfix = function (n, prec) { var k = Math.pow (PREC); Return ' + Math.Round (n * k)/k; }; Fix for IE parsefloat (0.55). toFixed (0) = 0; s = (Prec tofixedfix (n, prec): ' + Math.Round (n)). Split ('. ') if (S[0].length > 3) { S[0] = S[0].replace (/b (? = (?:d {3}) + (?! d)/g, Sep); } if ((s[1) | | '). Length < Prec) { S[1] = S[1] | | ''; S[1] + = new Array (prec-s[1].length + 1). Join (' 0 '); } Return S.join (DEC); }

/**
* Usage:number_format (123456.789, 2, '. ', ', ');
* result:123,456.79
**/

Add a sort suffix in English

The code is as follows	Copy Code
Number.prototype.toOrdinal = function () { var n = this% 100; var suffix = [' th ', ' st ', ' nd ', ' rd ', ' th ']; var ord = n < 21? (N < 4 Suffix[n]: suffix[0]): (n% > 4? suffix[0]: suffix[n% 10]); return this + ord; } /* * Usage: * var mynumold = 23 * var mynumnew = mynumold.toordinal () * result:23rd */

Remove characters that are not numeric

code is as follows

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function Stripnonnumeric (str) {   str + = ';   var rgx =/^d|.| -$/;   var out = ';   for (var i = 0; i < str.length i++)   {     if (rgx.test (Str.charat (i))) { br>       if (!) ( (Str.charat (i) = = '. ' && out.indexof ('. ')!=-1) | |              (Str.charat (i) = = '-' && Out.length!= 0)) {         out + + = Str.charat (i);       }    }  }   return out; }   /* *   usage:stripnonnumeric (' 123et45dhs6.789 '); *   result:123456.789 */