Question

I have a string:
"The quick brown fox jumps over the lazy dogs."

I want to use JavaScript (possibly with jQuery) to insert a character every n characters. For example I want to call:

var s = "The quick brown fox jumps over the lazy dogs.";
var new_s = UpdateString("$",5);
// new_s should equal "The q$uick $brown$ fox $jumps$ over$ the $lazy $dogs.$"

The goal is to use this function to insert &shy into long strings to allow them to wrap.

Maybe someone knows of a better way?

Answer 1

function chunk(str, n) {
    var ret = [];
    var i;
    var len;

    for(i = 0, len = str.length; i < len; i += n) {
       ret.push(str.substr(i, n))
    }

    return ret
};

chunk("The quick brown fox jumps over the lazy dogs.", 5).join('$');
// "The q$uick $brown$ fox $jumps$ over$ the $lazy $dogs."