8 Essential JavaScript Tips for Beginners

Photo by Gabriel Heinzer on Unsplash

JavaScript is a powerful programming language that is widely used for web and mobile development, and more. Whether you are a beginner just starting to learn JavaScript or an experienced developer looking to refresh your skills, these 8 tips will help you write better code and become more productive.

Lets’ get started:

1. console.log to debug your code

let x = 10;
let y = 20;
console.log(x + y);  // Output: 30

2. Template strings to easily create strings with variables

let name = 'John';
console.log(`Hello, ${name}!`);  // Output: "Hello, John!"

3. Spread operator (...) to expand arrays and objects

let a = [1, 2, 3];
let b = [...a, 4, 5, 6];
console.log(b);  // Output: [1, 2, 3, 4, 5, 6]

let obj1 = {a: 1, b: 2};
let obj2 = {...obj1, c: 3, d: 4};
console.log(obj2);  // Output: {a: 1, b: 2, c: 3, d: 4}

4. Destructuring to easily extract values from arrays and objects: Destructuring is powerful. I wrote an entire article on how to do it effectively. You can find it here.

let arr = [1, 2, 3, 4, 5];
let [a, b, c] = arr;
console.log(a);  // Output: 1
console.log(b);  // Output: 2
console.log(c);  // Output: 3

let obj = {a: 1, b: 2, c: 3};
let {a, b} = obj;
console.log(a);  //…