Generating unique 6 digit code js
javascript
Solution
You could shuffle your current codes with a function like this (from this answer)
//+ Jonas Raoni Soares Silva
//@ http://jsfromhell.com/array/shuffle [v1.0]
function shuffle(o){ //v1.0
for(var j, x, i = o.length; i; j = Math.floor(Math.random() * i), x = o[--i], o[i] = o[j], o[j] = x);
return o;
};
You could use it like this:
alert(shuffle("StackOverflow".split('')).join(''));
Here is an updated demo with this code.
Problem
I am trying to generate 6 digit code using JS. it must contains 3 digits and 3 chars. here is my code ``` var numbers = "0123456789"; var chars = "acdefhiklmnoqrstuvwxyz"; var string_length = 3; var randomstring = ''; var randomstring2 = ''; for (var x = 0; x < string_length; x++) { var letterOrNumber = Math.floor(Math.random() * 2); var rnum = Math.floor(Math.random() * chars.length); randomstring += chars.substring(rnum, rnum + 1); } for (var y = 0; y < string_length; y++) { var letterOrNumber2 = Math.floor(Math.random() * 2); var rnum2 = Math.floor(Math.random() * numbers.length); randomstring2 += numbers.substring(rnum2, rnum2 + 1); } var code = randomstring + randomstring2; ``` the code result will be 3chars + 3 numbers .. I want to just rearrange this value to be random value contains the same 3 chars and 3 numbers http://jsfiddle.net/pgDFQ/101/