JS Fundamentals: Objects, Arrays, and Functions

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Objects & Arrays

Exercise: Create an array-like object
Exercise: Create an array-like object

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Prompt

Implement push and pop and array-like behavior using an object.

function createArray() {

const storage = {};

return {

length: 0,

push: (value) => { /* TODO */ },

pop: () => { /* TODO */ }

};

}

const myArray = createArray();

myArray.push(11);

console.log(myArray);// myArray looks like {0: 11}

myArray.push(12);

console.log(myArray); // => {0: 11, 1: 12}

myArray.length; // => returns 2

myArray.pop(); // => returns 12

myArray.length; // => returns 1

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Solution

The solution is in the solution branch, which can be checked out in the

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push Solution

pop Solution

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Exercise: Create an array-like objectExercise: Create an array-like object

Prompt

Code here

Solution

push Solution

pop Solution

Next 👉 Functions⁠

Exercise: Create an array-like object
Exercise: Create an array-like object

Next 👉
`Functions`⁠