JS converts the number value into a currency format

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• Here are some conversion instances:

JS converts the number value into a currency format:

Here, the first method is to use JavaScript to convert the number to the format of the currency string (parameter: retain decimal places, currency symbols, integer part Of the thousands separator, decimal separator)

Here, the second method is to convert the currency character to a pure numeric string using a simple regular expression, and then convert the string to a numeric number.

Javascript money format (extended by prototype)

 //  Extend the default number object with a formatmoney () method:      //  Usage: somevar. formatmoney (decimalplaces, symbol, thousandsseparator, decimalseparator)      //  Defaults: (2, "$ ",",",".") Number. Prototype. formatmoney = Function (Places, symbol, thousand, decimal) {places =! Isnan (places = math. Abs (places ))? Places: 2 ; Symbol = Symbol! = Undefined? Symbol: "$" ; Thousand = Thousand | "," ; Decimal = Decimal | "." ;  VaR Number = This  , Negative = Number <0? "-":"" , I = Parseint (number = math. Abs (+ number | 0). tofixed (places), 10) + "", J = (J = I. Length)> 3? J % 3: 0 ;  Return Symbol + negative + (J? I. substr (0, j) + thousand: "") + I. substr (j). Replace (/(\ D {3 })(? = \ D)/g, "$1" + thousand) + (places? Decimal + math. Abs (number-I). tofixed (places). Slice (2 ):"" );}; 

 

Here are some conversion instances:

     //  Default usage and custom precision/Symbol:      VaR Revenue = 12345678. ; Alert (revenue. formatmoney ());  //  $12,345,678.00 Alert (revenue. formatmoney (0, "HK $ ")); //  Hk$ 12,345,678      //  European formatting:      VaR Price = 4999.99 ; Alert (price. formatmoney ( 2, "€ ",".",",")); //  €0. 4.999, 99      //  It works for negative values, too: Alert (-500000). formatmoney (0, "£ ")); //  £-500,000 

 

Currency to number-removing money formatting (filter using regular expressions)

 
VaRPrice = (12345.99). formatmoney ();//"$12,345.99"//Remove non-numeric Chars (alias t decimal point/minus sign ):Priceval = parsefloat (price. Replace (/[^ 0-9-.]/g ,''));//12345.99
 

This method is only applicable to the mode where the decimal separator is ".". If the decimal separator is "," The regular expression is/[^ 0-,]/g

 

Versions extended by number without prototype:

     //  To set it up as a global function:      Function Formatmoney (number, places, symbol, thousand, decimal) {number = Number | 0 ; Places =! Isnan (places = math. Abs (places ))? Places: 2 ; Symbol = Symbol! = Undefined? Symbol: "$" ; Thousand = Thousand | "," ; Decimal = Decimal | "." ;  VaR Negative = number <0? "-":"" , I = Parseint (number = math. Abs (+ number | 0). tofixed (places), 10) + "" , J = (J = I. Length)> 3? J % 3: 0 ;  Return Symbol + negative + (J? I. substr (0, j) + thousand: "") + I. substr (j). Replace (/(\ D {3 })(? = \ D)/g, "$1" + thousand) + (places? Decimal + math. Abs (number-I). tofixed (places). Slice (2 ):"" );}  //  To create it as a library method: Mylibrary. formatmoney = Function  (Number, places, symbol, thousand, decimal ){  /*  As abve  */  } //  Example usage: Formatmoney (54321 ); //  $54,321 Mylibrary. formatmoney (12345, 0, "£ "); //  £5. 12,345