javascript range array function #snippet #jsUtil

range.js

function range(start, edge, step) {
  // If only one number was passed in make it the edge and 0 the start.
  if (arguments.length == 1) {
    edge = start;
    start = 0;
  }
 
  // Validate the edge and step numbers.
  edge = edge || 0;
  step = step || 1;
 
  // Create the array of numbers, stopping befor the edge.
  for (var ret = []; (edge - start) * step > 0; start += step) {
    ret.push(start);
  }
  return ret;
}

A cool function that exists in Python is the range function which actually creates a list of numbers within the specified range.

From Chris West's blog his post