typeAhead.js

// Given an array of words, create a read-ahead method //

/************************************************************/
var myClass = {};

myClass.words = [ 'hippo', 'heckle', 'hamster', 'porcelain', 'potato', 'pompom', 'party'];

myClass.words.sorted = myClass.words.sort();

myClass.filter = (char) => {
  return myClass.words.sorted.filter(
    function(word){
      return word.indexOf(char)===0; 
      }
    ); 
}
/************************************************************/

// usage:  returns all words starting with string 'ham'
myClass.filter('ham');