Merge pull request #58 from wakidurrahman/feat/is-equivalent-object.ts

implement isEquivalent object

Author: wakidurrahman

src/problems/is-equivalent-object.ts

@@ -0,0 +1,25 @@
+// implementation of some property-based equality checking where each property of the object is compared.
+
+function isEquivalentObj(a: { [key: string]: number | string }, b: { [key: string]: number | string }) {
+  // Arrays of property names.
+  const aProps = Object.getOwnPropertyNames(a);
+  const bProps = Object.getOwnPropertyNames(b);
+
+  // If their property lengths are different, they're different objects
+  if (aProps.length != bProps.length) {
+    return false;
+  }
+
+  for (let i = 0; i < aProps.length; i++) {
+    let propName = aProps[i];
+    // If the values of the property are different, not equal
+    if (a[propName] !== b[propName]) {
+      return false;
+    }
+  }
+
+  // If everything matched, correct
+  return true;
+}
+// However, this would still work for objects that have only a string or a number as the property.
+isEquivalentObj({ hi: 12 }, { hi: 12 }); // Return true.