array functions

1.3_Array_Functions/array.js

@@ -0,0 +1,10 @@
+const arr = [ 'apple' , 'guava' , 'cherry' , 'peach' ]
+// const arr = [23, 34, 56, 78]
+// const arr = [23, 34, 'apple', 78]
+
+
+console.log(arr)
+console.log(arr[1])
+console.log(arr[4])
+console.log(typeof(arr))
+

1.3_Array_Functions/filter.js

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+const arr = [12, 34, 5, 78, 80, 23, 13]
+
+// const arrCopy = arr.filter((num)=>{
+//     return num>=18
+// })
+
+const arrCopy = arr.filter((num)=>{
+    return num+1
+})
+
+console.log(arrCopy)

1.3_Array_Functions/map.js

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+const arr = [12, 34, 67, 89, 45]
+
+// const arrCopy = arr.map(Math.sqrt)
+
+// const arrCopy = arr.map((element)=>{
+//     return element+1
+// })
+
+const arrCopy = arr.map((number) => {
+    return number*100
+})
+
+console.log(arrCopy)

1.3_Array_Functions/reducer,js

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+const arr = [1,2,3,4,5,6]
+
+const sum = arr.reduce((total,num)=>{
+    // return total+num
+    return total*num
+})
+
+
+console.log(sum)