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May 7, 2020 04:48 am GMT

9 Tricks To Write Less JavaScript.

Hi Dev , Thanks for opening my blog. I hope you are doing well and ready to learn some Tricks To Write Less JavaScript .

So, let's start!

1. Declaring Variables

//Longhandlet x;let y;let z = "post";//Shorthandlet x, y, z = "post";

2. Assignment Operator

//Longhandx = x + y;x = x - y;//Shorthandx += y;x -= y;

3. Ternary Operator

let answer, num = 15;//Longhandif (num > 10) {  answer = "greater than 10";} else {  answer = "less than 10";}//Shorthandconst answer = num > 10 ? "greater than 10" : "less than 10";

4. Short for Loop

const languages = ["html", "css", "js"];//Longhandfor (let i = 0; i < languages.length; i++) {  const language = languages[i];  console.log(language);}//Shorthandfor (let language of languages) console.log(language);

5. Template Literals

const name = "Dev";const timeOfDay = "afternoon";//Longhandconst greeting = "Hello " + name + ", I wish you a good " + timeOfDay + "!";//Shorthandconst greeting = `Hello ${name}, I wish you a good ${timeOfDay}!`;

6. Arrow Function

//Longhandfunction sayHello(name) {  console.log("Hello", name);}list.forEach(function (item) {  console.log(item);});//ShorthandsayHello = name => console.log("Hello", name);list.forEach(item => console.log(item));

7. Object Array Notation

//Longhandlet arr = new Array();arr[0] = "html";arr[1] = "css";arr[2] = "js";//Shorthandlet arr = ["html", "css", "js"];

8. Object Destructuring

const post = {  data: {    id: 1,    title: "9 trick to write less Javascript",    text: "Hello World!",    author: "Shoaib Sayyed",  },};//Longhandconst id = post.data.id;const title = post.data.title;const text = post.data.text;const author = post.data.author;//Shorthandconst { id, title, text, author } = post.data;

9. Object with identical Keys and Values

//Longhandconst userDetails = {  name: name, // 'name' key = 'name' variable  email: email,  age: age,  location: location,};//Shorthandconst userDetails = { name, email, age, location };

That's It .

Thanks for reading! My name is Shoaib Sayyed; I love helping people to learn new skills . You can follow me, if youd like to be notified about new articles and resources.


Original Link: https://dev.to/shoaib03/9-tricks-to-write-less-javascript-507i

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