Array Methods - push, pop, unshift, shift
Let's learn about methods for managing elements within an array.
array.push
The push method adds a new item to the end of an array. It's like adding a card to the top of a stack of cards.
Example:
Example of push method
const fruits = ['apple', 'banana'];
fruits.push('cherry');
console.log(fruits); // Output: ["apple", "banana", "cherry"]
array.pop
The pop method removes the last item from an array and returns that item. It's like taking the top card from a stack of cards.
Example:
Example of pop method
const fruits = ['apple', 'banana', 'cherry'];
const lastFruit = fruits.pop();
console.log(lastFruit); // Output: "cherry"
console.log(fruits); // Output: ["apple", "banana"]
array.unshift
The unshift method adds a new item to the beginning of an array. It's like adding a card to the bottom of a stack of cards.
Example:
Example of unshift method
const fruits = ['banana', 'cherry'];
fruits.unshift('apple');
console.log(fruits); // Output: ["apple", "banana", "cherry"]
array.shift
The shift method removes the first item from an array and returns that item. It's like taking the bottom card from a stack of cards.
Example:
Example of shift method
const fruits = ['apple', 'banana', 'cherry'];
const firstFruit = fruits.shift();
console.log(firstFruit); // Output: "apple"
console.log(fruits); // Output: ["banana", "cherry"]
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