map Method | JavaScript Array Methods | Beginners tutorial

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🧡 Hello All JavaScript Lovers Outhere!

Today you’re going to learn about the Array Object In JavaScript.

This tutorial is a series of videos, in each video we will discuss a method (or more) of the Array Object in JavaScript.

In today’s video, you’re going to learn about the map method.

map() creates a new array from calling a function for every array element.
map() calls a function once for each element in an array.
map() does not execute the function for empty elements.
map() does not change the original array.

🟢🟠 The
🔷 Syntax :
// Callback function
map(callbackFn, thisArg)

// Inline callback function
map(function(element) /* … */ )
map(function(element, index) /* … */ )
map(function(element, index, array) /* … */ )
map(function(element, index, array) /* … */ , thisArg)

🔹callbackFn : Function to execute on each element.
The function is called with the following arguments:

🔹element : The current element being processed in the array.
🔹index : The index of element in the array.
🔹array : The array forEach() was called upon.
🔹thisArg (Optional) : Value to use as this when executing callbackFn.

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How to Learn JavaScript For Beginner

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How to Learn JavaScript For Beginner

If you are a beginner in JavaScript, you might be wondering how to learn the language. A good way to learn is to join a community and meet other people who have the same interest as you. This will help you learn the language quickly. Joining a meetup or a JavaScript panel can be especially beneficial. The interaction with other people will continue to teach you about the language. You can also help others, which will open your eyes to different perspectives.

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