JavaScript - string to an array

Just need an example of how to copy a string of numbers to an array.  I have a number attribute (UPC) that can contain either 11 or 12 digits and I need to loop through each digital.  

Example; UPC  = 123456789012
                              1234457333
tmajor99Asked:
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ste5anConnect With a Mentor Senior DeveloperCommented:
Use .split():

var UPC = '1234457333'; 
var chars = UPC.split('');
for (var i = 0; i < chars.length; i++) {
    console.log('char at pos ' + i + ': ' + chars[i]);
}

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Julian HansenConnect With a Mentor Commented:
No need to split - this also works
var UPC = '1234457333';
for(var i = 0; i < UPC.length;i++) {
  console.log(UPC[i]);
}

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ste5anConnect With a Mentor Senior DeveloperCommented:
btw, the question is do you want the digits as number or string?

var UPC = '1234457333';
var chars = UPC.split('');
var digits = []
for (var i = 0; i < chars.length; i++) {
    console.log('char at pos ' + i + ': ' + chars[i] + ', data type: ' + typeof chars[i]);
    digits.push(parseInt(chars[i]));
}

for (var i = 0; i < digits.length; i++) {
    console.log('digits at pos ' + i + ': ' + digits[i] + ', data type: ' + typeof digits[i]);
}

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