If you are a programmer, you must be aware of what arrays are! Don’t you?
Arrays are one of the most useful JS functions, especially if you know how and where to use them. These are pretty simple, yet most powerful functions that can help you perform some action.
But before we get into detail about array methods, let’s see what Arrays are in JS.
What are Arrays?
The Array enables storing multiple values under a single variable name. It has other values as well for performing particular array operations.
In this post, we’ll talk about some popularly searched Array functions.
For instance, if you have a list of fruits stored in single variables could look like this:
However, if you want to perform the same function again and again, say repeat the fruits, then what would you do? And what if you had 100 fruits and not just 3?
The simple solution to this issue is an Array!
An array is a function that can hold various values under a single variable and thus making code appear simple and easy to understand.
So, an array of fruits would look like this:
The example of Array.map() is shown below:
The example of Array.filter() is shown below:
The example of Array.some() is shown below:
The example of Array.sort() is shown below:
The example of Array.reduce() is shown below:
The example of Array.every() is shown below:
The find() prototype in the array returns with the first element in the provided callback function that satisfies the function.
The example of Array.find() is shown below:
If in case, no values satisfy the callback function, “undefined” is displayed as the output
The example of Array.find() with undefined as the result is shown below:
The example of Array.findindex() is shown below:
You can even let us know in the comments sections if you come across some great JS functions that can be simplified using the above-mentioned array methods.
Hope this article proved to be of great help to you! In case, you still have some doubts, don’t hesitate to reach out to us, our developers will be happy to assist you!
Thanks for reading!