Introduction: Stop using for loops for everything! Modern JavaScript provides powerful methods that make your code shorter, more readable, and less prone to bugs.
The “Must-Know” Methods:
.map(): Use this when you want to transform every item in an array (e.g., doubling all numbers). It returns a new array..filter(): Perfect for removing items you don’t need (e.g., getting only “Active” users from a list)..reduce(): The “Swiss Army Knife.” Use it when you need to turn an entire array into a single value (e.g., calculating the total price of a shopping cart).
Why it matters: Cleaner code is easier to debug and faster to read for your teammates.