JavaScript Array Loop Methods Part 2 | reduce, every, some, from, with, entries & more EP 16 Part 2

Welcome to Episode 16 Part 2 of the JavaScript for Beginners series!

In this video, we’re diving deeper into Array Iteration Methods in JavaScript. These methods allow us to perform powerful operations like summing, checking conditions, updating values, and more — with clean, readable code.

We’ll cover:
✅ reduce() – To reduce arrays to a single value (like sum)
✅ reduceRight() – Like reduce, but from right to left
✅ every() – To test if all array values match a condition
✅ some() – To test if any array value matches a condition
✅ from() – Convert strings or iterable into arrays
✅ keys() – Get all array keys
✅ entries() – Get both index and value of array elements
✅ with() – Safely update array items (without changing the original)
✅ Spread ... operator – Merge or copy arrays

This episode features real-life examples, practical use cases, and live demos to help you master modern JavaScript faster.

✅ What You’ll Learn:
How reduce() and reduceRight() work for total calculations

The difference between every() and some()

How to use keys() and entries() for looping

How with() updates values safely

How the spread ... operator simplifies array operations

Hands-on code walkthroughs and tips