We are all used to the clean code that Array.map and Array.filter provide us, but for your real world applications, are regular for loops better than these convenient methods?
There are a few metrics we will consider when comparing the methods in the Array class, to the “old” for-loop way of doing things: performance, readability, and scalability. Here is one example of the types of loops we will be comparing today:
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What’s the usual thing you do with an array? Add or remove items from an array. Iterate through its items! This is where the forEach() array method shines.
Before we dive into seeing how forEach() works, we need to take a look at how looping works. Looping is a fundamental computer science concept. If you want to be a sound programmer, mastering loops are amidst the first steps you need to take.
We all know Arrayscollection of variables, and we all have used to perform some operations like Creating an array, Removing an Item from an Array, Sorting the data of an Array and other manipulations.
In Functional Programming, we are using functions like foreach, map, filter, reduce, concatAll and other Higher Order Functions. So today I am describing these functions in deep and show you how you can use it in various scenarios.
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