Completed Modules

src/every.js

@@ -8,7 +8,9 @@
 // ]
 // Expected Output: true
 function allNutritious (items) {
-
+    return items.every(function(item){
+        return item.nutritious == true;
+    });
 }
 
 // Sample Input:
@@ -19,7 +21,9 @@ function allNutritious (items) {
 // ]
 // Expected Output: false
 function allOfOneType (items) {
-
+    return items.every(function(item){
+        return (typeof item === typeof items[0]) && (Array.isArray(item) === Array.isArray(items[0])) ;
+    });
 }
 
 module.exports = { allNutritious, allOfOneType }

src/filter.js

@@ -3,7 +3,9 @@
 // Sample Input: [ 11, 44, 78, 99 ]
 // Expected Output: [ 11, 44 ]
 function onlyOdd (numbers) {
-
+    return numbers.filter(function(number){
+        return number % 2 === 1;
+    });
 }
 
 // Sample Input:
@@ -16,7 +18,21 @@ function onlyOdd (numbers) {
 // Expected Output:
 // { id: 42, name: 'Clojure' }
 function findById (languages, id) {
-
+    let lang = languages.filter(function(language){
+        if(!language){
+            return null;
+        }
+        if(language.id === id){
+            return {id: language.id, name: language.name};
+        } else {
+            return null;
+        }
+    }, id);
+    if(lang[0] !== undefined){
+        return lang[0];
+    } else {
+        return null;
+    }
 }
 
 module.exports = { onlyOdd, findById }

src/map.js

@@ -8,7 +8,9 @@
 // ]
 // Expected Output: ['Alex Mali', 'dvsn', 'Mura Masa']
 function justArtists (songs) {
-
+    return songs.map((song)=>{
+        return song.artist;
+    });
 }
 
 // Sample Input:
@@ -24,7 +26,9 @@ function justArtists (songs) {
 //   { name: 'Banana Bunches', price: 2.33, quantity: 2 }
 // ]
 function toObject (candies) {
-
+    return candies.map((candy)=>{
+        return {name: candy[0], price: candy[1], quantity: candy[2]};
+    });
 }
 
 module.exports = { justArtists, toObject }

src/reduce.js

@@ -9,7 +9,9 @@
 // ]
 // Expected Output: [ 10, 20, 30, -10, -4, 0, 10, 100, 1000 ]
 function flatten (matrix) {
-
+    return matrix.reduce((flat, matrixEntry) => {
+        return flat.concat(matrixEntry);
+    }, []);
 }
 
 // Sample Input:
@@ -24,7 +26,20 @@ function flatten (matrix) {
 //   cell: [ '(333) 655-4555', '(333) 455-5555', '(333) 255-5555' ]
 // }
 function consolidate (numbers) {
-
+  return numbers.reduce((phoneNumbers, numberEntry) => {
+        if(!numberEntry){
+            return phoneNumbers;
+        }
+        if(!phoneNumbers.home){
+            phoneNumbers.home = [];
+        }
+        if(!phoneNumbers.cell){
+            phoneNumbers.cell = [];
+        }
+        phoneNumbers.home.push(numberEntry.phone.home);
+        phoneNumbers.cell.push(numberEntry.phone.cell);
+        return phoneNumbers;
+  }, {});
 }
 
 module.exports = { flatten, consolidate }

src/some.js

@@ -3,13 +3,19 @@
 // Sample Input: [ 10, 20, 30, 40, -50 ]
 // Expected Output: true
 function anyAreNegative (numbers) {
-
+    return numbers.some((number) => number < 0)
 }
 
 // Sample Input: [ 'Once', 'upon', 'a', 'time', '' ]
 // Expected Output: true
 function includesFalseyValues (items) {
-
+  return items.some(item => {
+      if(!item){
+        return true;
+      } else {
+          return false;
+      }
+  })
 }
 
 module.exports = { anyAreNegative, includesFalseyValues }