Possible to ignore Cannot read property '0' of undefined? [duplicate]

Answer 1

You can use a boilerplate function to do so:

function get(obj, property) {      
  if (Array.isArray(property)) {
    var current = obj;
    for (var i = 0, l = property.length; i < l; ++i) {
      if (Object(current) === current) current = current[property[i]];
      else {
        current = undefined;
        break;
      }
    }
    return current;
  }
  if (Object(obj) === obj) return obj[property];
}

Pass either a string or an array to get to find the property -- if not found, undefined will be returned.

Example:

get(window, ['location', 'href']); // "http://stackoverflow.com..."
get(Number, 'MAX_VALUE'); // 1.7976931348623157e+308