JavaScript Program to Remove Specific Item From an Array

To understand this example, you should have the knowledge of the following JavaScript programming topics:


Example 1: Using For Loop

Output

[1, 3, 4, 5]

In the above program, an item is removed from an array using a for loop.

Here,

  • The for loop is used to loop through all the elements of an array.
  • While iterating through the elements of the array, if the item to remove does not match with the array element, that element is pushed to newArray.
  • The push() method adds the element to newArray.

Example 2: Using Array.splice()

Output

[1, 3, 4, 5]

In the above program, an array and the element to be removed is passed to the custom removeItemFromArray() function.

Here,

const index = array.indexOf(2);
console.log(index); // 1
  • The indexOf() method returns the index of the given element.
  • If the element is not in the array, indexOf() returns -1.
  • The if condition checks if the element to remove is in the array.
  • The splice() method is used to remove the element from an array.

Note: The above program only works for arrays without duplicate elements.

Only the first element of an array that matches is removed.

For example,

[1, 2, 3, 2, 5] results in [1, 3, 2, 5]