Here’s Why Mapping a Constructed Array in JavaScript Doesn’t Work
And How To Do It Correctly
Published in
4 min readJun 15, 2018
Scenario
For the sake of demonstration, suppose you need to generate an array of numbers from 0 to 99. How might you do this? Here’s one option:
const arr = [];for (let i = 0; i < 100; i++) {
arr[i] = i;
}