JavaScript: Remove n elements from the end of a given array

JavaScript fundamental (ES6 Syntax) exercises, practice and solution: Exercise-130 with Solution

Remove n Elements from End

Write a JavaScript program to remove n elements from the end of a given array.

• Use Array.prototype.slice() to create a slice of the array with n elements taken from the end.

Sample Solution:

JavaScript Code:

//#Source https://bit.ly/2neWfJ2 

// Define the 'takeRight' function.
const takeRight = (arr, n = 1) => arr.slice(arr.length - n, arr.length);

// Test the 'takeRight' function.
console.log(takeRight([1, 2, 3], 2)); // Output: [2, 3]
console.log(takeRight([1, 2, 3])); // Output: [3]

Output:

[2,3]
[3]

Visual Presentation:

Flowchart:

Live Demo:

See the Pen javascript-basic-exercise-130-1 by w3resource (@w3resource) on CodePen.

For more Practice: Solve these Related Problems:

• Write a JavaScript program that removes the last n elements from an array and returns the modified array.
• Write a JavaScript function that uses array slicing to drop n elements from the end of an array.
• Write a JavaScript program that validates the value of n and then truncates the array accordingly.

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