Does the slice() method alter the original array?

Other Questions JavaScript
1

When using the JavaScript slice() method on an array, does it make any changes to the original array? According to the slice() method definition in JavaScript, this function creates a new array and does not alter the original one from which the elements are taken. Here’s an example:

let animals = ['cat', 'dog', 'mouse'];
let someAnimals = animals.slice(1);
console.log(animals); // Output: ['cat', 'dog', 'mouse']
console.log(someAnimals); // Output: ['dog', 'mouse']

As you can see, the original array remains unmodified.

2

When you use the JavaScript slice() method on an array, it creates a new array and doesn’t change the original one. This means any operation you perform with slice() will not impact the original data. Let’s look at a quick example:

let animals = ['cat', 'dog', 'mouse'];
let selectedAnimals = animals.slice(1);

console.log(animals); // Output: ['cat', 'dog', 'mouse']
console.log(selectedAnimals); // Output: ['dog', 'mouse']

This demonstrates that the slice() method extracts elements to form a new array, leaving the initial array intact.

3

Hey there!

The slice() method in JavaScript returns a new array and does not modify the original one. Example:

let animals = ['cat', 'dog', 'mouse'];
let newAnimals = animals.slice(1);

console.log(animals);  // ['cat', 'dog', 'mouse']
console.log(newAnimals);  // ['dog', 'mouse']

Original array is unchanged.