8 JavaScript Array Methods That Front End Developer’s Should Know

There are too many amazing JavaScript array methods are available. Here we will discuss on the 8 most important and frequently used array methods in JavaScript.

8 JavaScript Array Methods That Front End Developer’s Should Know

JavaScript — Arrays Object in one line

List Of JavaScript Array Methods

  • filter(): Use to filtered out the items from an array.
  • map(): Return a new array with the results of calling a function for every array element.
  • find(): Return array element where the function returns a true value.
  • forEach(): Method calls a function once for each element in an array.
  • some(): Return true if any of the elements in an array pass a test.
  • every(): Return true if all elements in an array pass a test.
  • reduce(): Apply some operation on an array and return the combination of all those operations.
  • includes(): Determines whether an array contains a specified element.

1. JavaScript Array filter() Method

JavaScript Array Filter Method Example
JavaScript Array Filter Method Example

2. JavaScript Array map() Method

Keep in mind that the resulting array will always be the same length as the original array. Below is the Example.

JavaScript Array map() Method Example
JavaScript Array map() Method Example

3. JavaScript Array find() Method

Keep in mind that it will return the only first match and skip the all other match.

JavaScript Array find() Method Example
JavaScript Array find() Method Example

4. JavaScript Array forEach() Method

JavaScript Array forEach() Method Example
JavaScript Array forEach() Method Example

5. JavaScript Array some() Method

Validates against every element and return true if at least one of the element is validated as true.

JavaScript Array some() Method Example
JavaScript Array some() Method Example

6. JavaScript Array every() Method

Validates against every element and return true if all the elements are validated as true.

JavaScript Array every() Method Example
JavaScript Array every() Method Example

7. JavaScript Array reduce() Method

JavaScript Array reduce() Method Example
JavaScript Array reduce() Method Example

8. JavaScript Array includes() Method

JavaScript Array includes() Method Example
JavaScript Array includes() Method Example

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