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@danielnass
Created October 11, 2022 01:43
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JavaScript Array Map From Scratch
// 1 - Create map function
function map(array, fn){
let newArr = [];
for (value of array){
newArr.push(fn(value));
}
return newArr;
}
// 2 - Create an array to iterate into map
const myArr = [1,2,3];
// 3 - The callback function to modify the value of each map iteration
function doubleIt(value){
return value * 2;
}
// 4 - Execute the map function with myArr and doubleIt and return it to doubleArrayValues const
const doubleArrayValues = map(myArr, doubleIt); // [2,4,6]
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