Pass Test

index.js

@@ -0,0 +1,94 @@
+const changeToArray = (collection) => Array.isArray(collection) ? collection : Object.values(collection)
+const multiplyByThree = (num) => num * 3
+const alertMe = (item) => alert(`${item}`)
+const callback = (acc, i, array) => (acc + (i * 3))
+const callback2 = (acc, val, collection) => (acc + val )
+function findCBGenerator(target) {
+  return (function(currEl) { return target === currEl })
+}
+
+const myEach = (collection, callbackFunc) => {
+  changeToArray(collection).forEach(callbackFunc)
+  return collection
+}
+
+const myMap = (collection, callbackFunc) => changeToArray(collection).map(callbackFunc)
+
+const myReduce = (collection, callbackFunc, acc) => {
+  const array = changeToArray(collection)
+  let startIndex = 0
+  if(!acc){
+    acc = array[0]
+    startIndex = 1
+  }
+  let total = acc
+  for(let i = startIndex; i < array.length; i++){
+    acc = callbackFunc(acc, array[i],array)
+  }
+return acc
+}
+
+
+const myFind = (collection, callBackFunc) => {
+  const array = changeToArray(collection)
+  for(let i = 0; i < array.length; i++){
+    if(callBackFunc(collection[i])){
+      return collection[i]
+    }
+  }
+  return
+}
+
+function excluder(currEl) {
+  return (currEl > 10)
+}
+
+const myFilter = (collection, callBackFunc) => {
+  const array = changeToArray(collection)
+  let returnArray = []
+  for(let i = 0; i < array.length; i++){
+    if(callBackFunc(array[i])){
+      returnArray.push(array[i])
+    }
+  }
+  return returnArray
+}
+
+const mySize = (collection) => {
+  const array = changeToArray(collection)
+  return array.length
+}
+
+const myFirst = (collection, elemsToReturn) => {
+  const array = changeToArray(collection)
+  if(!elemsToReturn){
+    return array[0]
+  }else{
+    return array.splice(0,elemsToReturn)
+  }
+}
+
+const myLast = (collection, elemsToReturn) => {
+  const array = changeToArray(collection)
+  if(!elemsToReturn){
+    return array[array.length - 1]
+  }else{
+    return array.splice(-elemsToReturn)
+  }
+}
+
+const myKeys = (collection) => {
+  const returnKeys = []
+  for(const key in collection)[
+    returnKeys.push(key)
+  ]
+  return returnKeys
+}
+
+const myValues = (collection) => {
+  const returnValues = []
+  for(const key in collection){
+    returnValues.push(collection[key])
+  }
+  return returnValues
+}