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Learn JavaScript Step by Step
JavaScript String Object is used to store, manipulate, and format text data. It helps perform operations like finding length, changing case, and searching text. JavaScript Date Object is used to work with dates and time
JavaScript Objects are non-primitive data type. Unlike variables, object holds multiple values in terms of properties and methods. Here Properties can hold values of primitive data types and methods are JavaScript functions
JavaScript functions are used to perform certain tasks. Once created we can call a JavaScript function many times to reuse the code. A function always has a return type. It makes the programs more manageable.
JavaScript Control Statements is a very crucial component in deciding the program flow control . Depending upon the JavaScript control statements the programs may split in many branches, or repeat certain steps certain number of times or may jump certain statements.
JavaScript provides various data types to hold different types of values. Mainly, there are two types of data types in JavaScript. Primitive data type Non-primitive (reference) data type
A JavaScript variable is simply a name of storage location which holds some value and can be changed any time. A JavaScript variable must have a unique name. You can assign a value to a JavaScript variable using equal to (=) operator. A variable is also called identifiers.
Generating output in JavaScript can be in many different ways. For example, you might want to output the value of variable, or write a message to browser console to help you in debugging the JavaScript code, taking the output via dialog boxes, sending output into an HTML element, etc.
It is a big question that where to write JavaScript codes in our project. So we can write JavaScript codes at different places by two ways. JavaScript codes can be written in an HTML file within a script tag. JavaScript codes can be written in a .js file.
Now a days all the modern browsers come with built-in support for JavaScript. So frequently, you may need to enable JavaScript or disable JavaScript support manually. In this chapter you will learn the steps involved to enable JavaScript support in various browsers like, Internet Explorer, Firefox, chrome, Opera and Android web browsers.
What is JavaScript? JavaScript is a lightweight and powerful programming language used to make websites interactive and dynamic. It is one of the core technologies of modern web development and is widely used by developers, students, and businesses across the world.
