Browse - Programming Tips - javaScript has no sprintf() ... how can I zero pad a number?

Date: 2007oct11
Language: javaScript

Q. javaScript has no sprintf() ... how can I zero pad a number?

A.  Use this function:

// n = number you want padded // digits = length you want the final output function zeroPad(n, digits) { n = n.toString(); while (n.length < digits) { n = '0' + n; } return n; } function exampleUse() { var a; // Pad 123 to 8 digits a = zeroPad(123, 8); alert('a='+ a); }