updated objects.js

smith713 · smith713 · commit 5e23e259dd09 · 2017-07-09T22:46:47.000-05:00
diff --git a/src/objects.js b/src/objects.js
@@ -5,34 +5,61 @@ const keys = (obj) => {
   // Retrieve all the names of the object's properties.
   // Return the keys as strings in an array.
   // Based on http://underscorejs.org/#keys
+  return Object.keys(obj);
 };
 
 const values = (obj) => {
   // Return all of the values of the object's own properties.
   // Ignore functions
   // http://underscorejs.org/#values
+  const vals = Object.keys(obj).map((key) => {
+    return obj[key];
+  });
+  return vals;
 };
 
 const mapObject = (obj, cb) => {
   // Like map for arrays, but for objects. Transform the value of each property in turn.
   // http://underscorejs.org/#mapObject
+  Object.keys(obj).forEach(key => (obj[key] = cb(obj[key])));
+  return obj;
 };
 
 const pairs = (obj) => {
   // Convert an object into a list of [key, value] pairs.
   // http://underscorejs.org/#pairs
+  const keyValue = (Object.keys(obj).map(key => ([key, obj[key]])));
+  return keyValue;
 };
-
 const invert = (obj) => {
   // Returns a copy of the object where the keys have become the values and the values the keys.
   // Assume that all of the object's values will be unique and string serializable.
   // http://underscorejs.org/#invert
+//  Object.keys(obj).forEach((key) => {
+//    const newKey = obj[key];
+//    obj[newKey] = key;
+//    delete obj[key];
+//  });
+//  return obj;
+  Object.keys(obj).forEach((key) => {
+    const newKey = obj[key];
+    obj[newKey] = key;
+    delete obj[key];
+  });
+  return obj;
 };
 
 const defaults = (obj, defaultProps) => {
   // Fill in undefined properties that match properties on the `defaultProps` parameter object.
   // Return `obj`.
   // http://underscorejs.org/#defaults
+  Object.keys(defaultProps).forEach((key) => {
+    if (Object.prototype.hasOwnProperty.call(obj, key)) {
+      return;
+    }
+    obj[key] = defaultProps[key];
+  });
+  return obj;
 };
 
 /* eslint-enable no-unused-vars */
