I know that JSLint is only a guide and you should take what it says with a grain of salt, however, I'm curious how I can even resolve this warning without rewriting the entire function. Here is the function of interest: function randomString(length) { var chars = 'ABCDEFGHIJKLMNOPQRSTUVWXTZabcdefghiklmnopqrstuvwxyz'.split(''), str = '', i; if (!length) { length = randomNumber(chars.length); } for (i = 0; i < length; i++) { str += chars[randomNumber(chars.length)]; } return str; } JS Lint tells me "JS Lint: Use the array literal notation []." and it is pointing to the line with string.split() . How can I satisfy JSLint without having to re-write the entire function? Is it even possible? I am aware that there are other methods to generate random strings; I'm interested in how to resolve the JSLint warning using this method.