lesson5

Author: codebryo

lesson5.js

@@ -0,0 +1,43 @@
+// Custom Pokemons Implementation
+let Pokemons = {
+  // Method we want to replace
+  amount() {
+    // Call to database
+  },
+
+  // Method we want to stay intact
+  say(str) {
+    console.log('Your Pokedex says: ', str)
+  }
+}
+
+// Function using Pokemons class
+function howsMyCollection() {
+  const size = Pokemons.amount()
+  if (size === undefined)
+    return Pokemons.say('Ooops, not sure how many you have')
+  if (size < 10)
+    return Pokemons.say('You only have a few, you need more')
+  if (size < 50)
+    return Pokemons.say('You have quite some favorites. Keep going')
+  return Pokemons.say('You are quite a collector')
+}
+
+// Keep an implementation of original implementation for potential use later on
+const originalAmount = Pokemons.amount
+
+// Change the output of the amounts function
+function stubAmount(amount) {
+  Pokemons.amount = () => amount
+}
+
+// Testing function
+function havePokemons(amount) {
+  stubAmount(amount)
+  howsMyCollection()
+}
+
+// A few tests to show outputs
+havePokemons(5)   // -- You only have a few, you need more
+havePokemons(17)  // -- You have quite some favorites. Keep going
+havePokemons(100) // -- You are quite a collector