JavaScript: Remove specified elements from the right of a given array of elements

JavaScript fundamental (ES6 Syntax): Exercise-19 with Solution

Remove Right Elements from Array

Write a JavaScript program to remove specified elements from the right of a given array of elements.

Sample Solution:

JavaScript Code:

//#Source https://bit.ly/2neWfJ2 
// Define a function called `remove_from_right` that removes elements from the right side of an array.
function remove_from_right(arr, n = -1){
  return arr.slice(n); // Slice the array from index n to the end, where n defaults to -1
}

// Example usage
console.log(remove_from_right([1, 2, 3])); // [3]
console.log(remove_from_right([1, 2, 3], -1)); // [3]
console.log(remove_from_right([1, 2, 3], -2)); // [2, 3]
console.log(remove_from_right([1, 2, 3], -4)); // [1, 2, 3]

Output:

[3]
[3]
[2,3]
[1,2,3]

Visual Presentation:

Flowchart:

Live Demo:

See the Pen javascript-basic-exercise-1-19 by w3resource (@w3resource) on CodePen.

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