javascript - Insert character after every nth character -

javascript - Insert character after every nth character -

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how can insert character after every n characters in javascript? 2 answers

i'm trying convert number like: 1215464565 12-15-46-45-65. i'm trying this:

var num = 1215464565; num = num.tostring(); num.replace(/(.{2)/g,"-1");

the jsfiddle, doesn't reflect alter though.

var num = 1215464565; var newnum = num.tostring().match(/.{2}/g).join('-'); console.log(newnum);

jsfiddle example

javascript regex