Javascript Dialogs— Js wall

There are 3 different types of popups in Javascript.

Before beginning you should create account on codepen for practice.

Javascript Alert —

Alert is the basic method of Javascript to add behaviour in websites. Go to URL to check how alert works.

alert(text-message) — The alert() method displays an alert box with a specified message and an OK button. // write alert(‘Ethicals Wall’) in your console or in JS section of codepen.

Javascript prompt —

A prompt box is often used if you want the user to input a value before entering a page. If we store the value of user input in a variable, it will store in it as a string.

prompt(text-message, default) — The prompt() method open a input box for user with OK and cancel button // write prompt(‘Enter Your Name’)

Javascript confirm —

A confirm box is often used if you want the user to verify or accept something. When a confirm box pops up, the user will have to click either “OK” or “Cancel” to proceed.

confirm(text-message) — The confirm() method is generally use to take confirmation before proceeding. // confirm(‘Are You Sure ?’)

Building Blocks of Programming Language —

Here’re some of the components or buiding blocks of a programming language.

Data Types — It use to identify the type of data, like, String, number, etc.

Variables — Variables are containers used for storing data values.

Operators — It is a special symbol used to perform operations on operands.

Expressions — An expression is any valid unit of code that resolves to a value.

Let’s start reviewing these topics step by step for better understanding of Javascript basics and how to use it.

Next — Data Types