Javascript offers different ways to work with arrays one of the most used data structures out there.

Learn some of these methods and functions to improve the way you manipulate arrays in your code.

Javascript offers different ways to manipulate an array. One of this situations is the need of update or modify the content of one of the items of an array of objects. To do this we can use mutable methods like index access or immutable ways by using `Array.map` or a combination of `Array.findIndex` and `Array.slice`

3 Ways to Update the Content of an Array of Objects with Javascript

Javascript offers at least 4 ways to fill an array with different values using only native language methods. These methods allow you to create an arrangement of a predefined size and content.

It's possible to use `Array.fill` to create an Array with a pre-defined size and then use `Array.map` to populate the items with a default value, like integer or string.

It's also possible to populate the array with an object, but we will require to use another  function because `Array.fill` just copy a reference to the original object without creating multiple unique objects. To solve this we can use `Array.map`.

Other way to solve the same problem is by using a for loop, but this is a mutable method.

Also, we can use `Array.from` or the array spread syntax in combination with the `Array.map` function.


Efficient Javascript Array Manipulation

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