Finding matching string from javascript array

Question

I have one array of strings. I need to find all strings starting with a key. for eg: if there is an array [\'apple\',\'ape\',\'open\',\'soap\'] when searched with

Answer 1

function find(key, array) {
  // The variable results needs var in this case (without 'var' a global variable is created)
  var results = [];
  for (var i = 0; i < array.length; i++) {
    if (array[i].indexOf(key) == 0) {
      results.push(array[i]);
    }
  }
  return results;
}