Fixed typeahead signatures

- Updated according to official documentation: see
https://github.com/twitter/typeahead.js/blob/master/doc/jquery_typeahead.md
- Added one more test (from official samples)

typeahead/typeahead-tests.ts

@@ -8,7 +8,7 @@ declare var Hogan: string;
 
 // Countries
 // Prefetches data, stores it in localStorage, and searches it on the client
-$('.example-countries .typeahead').typeahead({
+$('.example-countries .typeahead').typeahead(null, {
     name: 'countries',
     prefetch: '../data/countries.json',
     limit: 10
@@ -16,7 +16,7 @@ $('.example-countries .typeahead').typeahead({
 
 // Open Source Projects by Twitter
 // Defines a custom template and template engine for rendering suggestions
-$('.example-twitter-oss .typeahead').typeahead({
+$('.example-twitter-oss .typeahead').typeahead(null, {
     name: 'twitter-oss',
     prefetch: '../data/repos.json',
     template: [
@@ -29,7 +29,7 @@ $('.example-twitter-oss .typeahead').typeahead({
 
 // Arabic Phrases
 // Hardcoded list showing Right - To - Left(RTL) support
-$('.example-arabic .typeahead').typeahead({
+$('.example-arabic .typeahead').typeahead(null, {
     name: 'arabic',
     local: [
         "الإنجليزية",
@@ -47,7 +47,7 @@ $('.example-arabic .typeahead').typeahead({
 
 // NBA and NHL Teams
 // Two datasets that are prefetched, stored, and searched on the client
-$('.example-sports .typeahead').typeahead([
+$('.example-sports .typeahead').typeahead(null, [
     {
         name: 'nba-teams',
         prefetch: '../data/nba.json',
@@ -62,7 +62,7 @@ $('.example-sports .typeahead').typeahead([
 
 // Best Picture Winners
 // Prefetches some data then relies on remote requests for suggestions when prefetched data is insufficient
-$('.example-films .typeahead').typeahead([
+$('.example-films .typeahead').typeahead(null, [
     {
         name: 'best-picture-winners',
         remote: '../data/films/queries/%QUERY.json',
@@ -85,3 +85,50 @@ $('.example-countries .typeahead').typeahead({
   prefetch: '../data/countries.json',
   limit: 10
 });
+
+
+var substringMatcher = function (strs) {
+    return function findMatches(q, cb) {
+        var matches, substrRegex;
+
+        // an array that will be populated with substring matches
+        matches = [];
+
+        // regex used to determine if a string contains the substring `q`
+        substrRegex = new RegExp(q, 'i');
+
+        // iterate through the pool of strings and for any string that
+        // contains the substring `q`, add it to the `matches` array
+        $.each(strs, function (i, str) {
+            if (substrRegex.test(str)) {
+                // the typeahead jQuery plugin expects suggestions to a
+                // JavaScript object, refer to typeahead docs for more info
+                matches.push({ value: str });
+            }
+        });
+
+        cb(matches);
+    };
+};
+
+var states = ['Alabama', 'Alaska', 'Arizona', 'Arkansas', 'California',
+    'Colorado', 'Connecticut', 'Delaware', 'Florida', 'Georgia', 'Hawaii',
+    'Idaho', 'Illinois', 'Indiana', 'Iowa', 'Kansas', 'Kentucky', 'Louisiana',
+    'Maine', 'Maryland', 'Massachusetts', 'Michigan', 'Minnesota',
+    'Mississippi', 'Missouri', 'Montana', 'Nebraska', 'Nevada', 'New Hampshire',
+    'New Jersey', 'New Mexico', 'New York', 'North Carolina', 'North Dakota',
+    'Ohio', 'Oklahoma', 'Oregon', 'Pennsylvania', 'Rhode Island',
+    'South Carolina', 'South Dakota', 'Tennessee', 'Texas', 'Utah', 'Vermont',
+    'Virginia', 'Washington', 'West Virginia', 'Wisconsin', 'Wyoming'
+];
+
+$('#the-basics .typeahead').typeahead({
+    hint: true,
+    highlight: true,
+    minLength: 1
+},
+    {
+        name: 'states',
+        displayKey: 'value',
+        source: substringMatcher(states)
+    });