Removing Elements from Arrays During Iteration in JavaScript: A Guide to forEach, for, and for...in
1. forEach Loop ==========
Example: Removing elements equal to 1 from an array during iteration.
let arr = [1, 1, 2];
arr.forEach((item, index, array) => {
if (item === 1) {
array.splice(index, 1);
}
});
console.log(arr); // Output: [1, 2]
Result: After iteration, the output is [1, 2], leaving one instance of 1 untouched.
Cause Ana ...
Posted on Fri, 26 Jun 2026 16:29:42 +0000 by afhouston