Which is the correct way to write JavaScript?

Which is the correct way to write JavaScript?

JavaScript best practices

1. Introduction.
2. Call things by their name — easy, short and readable variable and function names.
3. Avoid globals.
4. Stick to a strict coding style.
5. Comment as much as needed but not more.
6. Avoid mixing with other technologies.
7. Use shortcut notation when it makes sense.
8. Modularize — one function per task.

What is idiomatic JavaScript?

Idiomatic here means “How people who write JavaScript write JavaScript”. It means “Natural to the native speaker”. For example, returning an object is considered by some idiomatic JavaScript: function foo(){ return {x:3,y:5}; } var point = foo();

How do you write structured JavaScript?

Let’s take a closer look at the 5 ways to organize your JavaScript the right way.

1. Comment Your Code. When writing a new function, class, model, constant, or really anything, leave comments behind to help whoever is working on it.
2. Use ES6 Classes.
3. Promises Are Your Friend.
4. Keep Things Separated.
5. Use Constants and Enums.

Why use self instead of this in JavaScript?

self (just a property of the global window object) = window. So, within the inner function, “this” refers to the object calling the inner function while “self” refers to the object which called the outer function to create the reference to the inner function.

What is JavaScript commonly used for?

JavaScript is a text-based programming language used both on the client-side and server-side that allows you to make web pages interactive. Where HTML and CSS are languages that give structure and style to web pages, JavaScript gives web pages interactive elements that engage a user.

What are JavaScript data types?

The set of types in the JavaScript language consists of primitive values and objects.

• Primitive values (immutable datum represented directly at the lowest level of the language) Boolean type. Null type. Undefined type. Number type. BigInt type. String type. Symbol type.
• Objects (collections of properties)

What is structure of JavaScript?

JavaScript programs consist of a series of instructions known as statements, just as written paragraphs consist of a series of sentences. While a sentence will end with a period, a JavaScript statement often ends in a semicolon ( ; ).

What is difference between this and self?

So, within the inner function, “this” refers to the object calling the inner function while “self” refers to the object which called the outer function to create the reference to the inner function.

Is JavaScript used for frontend or backend?

JavaScript is used across the web development stack. That’s right: it’s both front end and backend.