adding keyed collections

spacerockzero · spacerockzero · commit 7a1f6be436f7 · 2017-06-29T18:39:31.000-06:00
diff --git a/index.js b/index.js
@@ -1,7 +1,8 @@
 // default
 const normal = {
-  initial: require('./problems/initial'),
-  arrays: require('./problems/arrays')
+  // initial: require('./problems/initial'),
+  // arrays: require('./problems/arrays'),
+  'keyed-collections': require('./problems/keyed-collections')
 };
 
 module.exports = normal;
diff --git a/problems/keyed-collections.js b/problems/keyed-collections.js
@@ -1,7 +1,77 @@
+"use strict";
+
+module.exports = [
+
 // Map()
-// .length // 0
 // .size()
-// .clear()
+// {
+//   name: 'Create Map',
+//   time: 10,
+//   prompt: `Map isn't like array. It uses 'size' instead of 'length'. Return the length of the 'players' Map.`,
+//   given: `const players = new Map();
+//           players.set('Steve',{});
+//           players.set('Geoff',{});
+//           return players`,
+//   answer: `const players = new Map();
+//           players.set('Steve',{});
+//           players.set('Geoff',{});
+//           return players.size`,
+//   tests: [{
+//     name: 'Correct output',
+//     test: 'assert.equal(output, 2, "Not the expected value") === undefined;'
+//   }, {
+//     name: 'Returns a number',
+//     test: 'assert.isNumber(output, "Should return a type number") === undefined;'
+//   }]
+// },
+// // .clear()
+// {
+//   name: 'Empty the Map',
+//   time: 10,
+//   prompt: `Empty the 'players' Map using '.clear()'`,
+//   given: `const players = new Map();
+//           players.set('Steve', true);
+//           players.set('Geoff', true);
+
+//           return players;`,
+//   answer: `const players = new Map();
+//            players.set('Steve', true);
+//            players.set('Geoff', true);
+//            players.clear();
+//            return players;`,
+//   tests: [{
+//     name: 'Returns a Map',
+//     test: 'assert.equal(output instanceof Map, true, "Should return a type Map") === undefined;'
+//   }, {
+//     name: 'Map is empty',
+//     test: 'assert.equal(output.size, 0, "Map should be empty") === undefined;'
+//   }]
+// },
+{
+  name: 'Map.delete()',
+  time: 10,
+  prompt: `Remove 'Steve' from 'players' using '.delete()'`,
+  given: `const players = new Map();
+          players.set('Steve', 'foo');
+          players.set('Geoff', 'foo'});
+
+          return players;`,
+  answer: `const players = new Map();
+           players.set('Steve', 'foo');
+           players.set('Geoff', 'foo');
+           players.delete('Steve');
+           return players;`,
+  tests: [{
+    name: 'Returns a Map',
+    test: 'assert.equal(output instanceof Map, true, "Should return a type Map") === undefined;'
+  }, {
+    name: 'Map has one player',
+    test: 'assert.equal(output.size, 1, "Map.size should be 1") === undefined;'
+  }, {
+    name: 'Map has player Geoff',
+    test: `assert.equal(output.has('Geoff'), true, "Map should still have Geoff") === undefined;`
+  }]
+}
 // .delete()
 // .entries()
 // .forEach()
@@ -36,4 +106,5 @@
 // difference
 
 // WeakSet()
-"use strict";
+
+];
