tests passing

index.js

@@ -7,7 +7,15 @@
  * trimProperties({ name: '  jane  ' }) // returns a new object { name: 'jane' }
  */
 function trimProperties(obj) {
-  // ✨ implement
+  const trimmedObj = {}
+  for(let prop in obj){
+    if(typeof obj[prop] === 'string'){
+      trimmedObj[prop] = obj[prop].trim()
+    }else{
+      trimmedObj[prop] = obj[prop]
+    }
+  }
+  return trimmedObj
 }
 
 /**
@@ -19,7 +27,10 @@ function trimProperties(obj) {
  * trimPropertiesMutation({ name: '  jane  ' }) // returns the object mutated in place { name: 'jane' }
  */
 function trimPropertiesMutation(obj) {
-  // ✨ implement
+  for(let prop in obj){
+    obj[prop] = obj[prop].trim()
+  }
+  return obj
 }
 
 /**
@@ -31,7 +42,11 @@ function trimPropertiesMutation(obj) {
  * findLargestInteger([{ integer: 1 }, { integer: 3 }, { integer: 2 }]) // returns 3
  */
 function findLargestInteger(integers) {
-  // ✨ implement
+  let largest = 0
+  for(let i = 0; i < integers.length; i++){
+    if(integers[i].integer > largest){largest = integers[i].integer}
+  }
+  return largest
 }
 
 class Counter {
@@ -40,7 +55,7 @@ class Counter {
    * @param {number} initialNumber - the initial state of the count
    */
   constructor(initialNumber) {
-    // ✨ initialize whatever properties are needed
+    this.count = initialNumber
   }
 
   /**
@@ -56,7 +71,7 @@ class Counter {
    * counter.countDown() // returns 0
    */
   countDown() {
-    // ✨ implement
+    return this.count > 0 ? this.count-- : 0
   }
 }
 
@@ -65,7 +80,8 @@ class Seasons {
    * [Exercise 5A] Seasons creates a seasons object
    */
   constructor() {
-    // ✨ initialize whatever properties are needed
+    this.seasons = ['winter', 'notspring', 'summer', 'fall']
+    this.currentSeason = 0
   }
 
   /**
@@ -81,7 +97,13 @@ class Seasons {
    * seasons.next() // returns "summer"
    */
   next() {
-    // ✨ implement
+    let theCurrentSeason = this.seasons[this.currentSeason]
+    if(this.currentSeason === 3){
+      this.currentSeason = 0
+    }else{
+      ++this.currentSeason
+      return theCurrentSeason
+    }
   }
 }
 
@@ -95,7 +117,9 @@ class Car {
   constructor(name, tankSize, mpg) {
     this.odometer = 0 // car initilizes with zero miles
     this.tank = tankSize // car initiazes full of gas
-    // ✨ initialize whatever other properties are needed
+    this.name = name
+    this.mpg = mpg
+    this.tankMax = tankSize
   }
 
   /**
@@ -112,7 +136,13 @@ class Car {
    * focus.drive(200) // returns 600 (ran out of gas after 100 miles)
    */
   drive(distance) {
-    // ✨ implement
+    let maxRange = this.tank * this.mpg
+    if(distance <= maxRange){this.odometer = this.odometer + distance; this.tank = this.tank - distance / this.mpg}
+    else{
+      this.tank = 0
+      this.odometer = this.odometer + maxRange
+    }
+    return this.odometer
   }
 
   /**
@@ -127,7 +157,13 @@ class Car {
    * focus.refuel(99) // returns 600 (tank only holds 20)
    */
   refuel(gallons) {
-    // ✨ implement
+    if(this.tank + gallons > this.tankMax){
+      this.tank = this.tankMax
+      return Car
+    }else{
+      this.tank += gallons 
+    }
+    return Car
   }
 }
 
@@ -144,8 +180,14 @@ class Car {
  *    // result is false
  * })
  */
-function isEvenNumberAsync(number) {
-  // ✨ implement
+async function isEvenNumberAsync(number) {
+  if(!number || typeof number !== 'number'){
+    return false
+  }if(number % 2 ===0){
+    return true
+  }else{
+    return false
+  }
 }
 
 module.exports = {