nojs bootstrap frontend

HTML

<input type="text" id="keyword">
<div id="result"/>

JavaScript

if (typeof String.prototype.startsWith != 'function') {
  String.prototype.startsWith = function (str){
    return this.slice(0, str.length) == str;
  };
}

var keyword = 'mas';
var dictionary = [
    'super',
    'master',
    'mind'    
]
$("#keyword").bind('keypress', function(e) {
	if(e.keyCode==13){
        $("#result").html('test');

	}
});

dictionary.filter(isBigEnough);
function isPartWordStart(element) {
  return element.startsWith(keyword);
}

var data = [
  [{letter:'d', visited:false}, {letter:'g', visited:false},{letter:'h', visited:false},{letter:'i', visited:false}],
  [{letter:'k', visited:false}, {letter:'l', visited:false},{letter:'p', visited:false},{letter:'s', visited:false}],
  [{letter:'y', visited:false}, {letter:'e', visited:false},{letter:'u', visited:false},{letter:'t', visited:false}],
  [{letter:'e', visited:false}, {letter:'o', visited:false},{letter:'r', visited:false},{letter:'n', visited:false}]
];