An Introduction to JavaScript

Let’s see what’s so special about JavaScript, what we can achieve with it, and what other technologies play well with it.

What is JavaScript?

<h1>Heading</h1>
<p class="test testing test" >Lorem...</p>
<input required type="text" /> 

// SPDX-License-Identifier: GPL-3.0
pragma solidity >=0.4.16 <0.9.0;

contract SimpleStorage {
    uint storedData;

    function set(uint x) public {
        storedData = x;
    }

    function get() public view returns (uint) {
        return storedData;
    }
}

JavaScript was initially created to “make web pages alive”.

The programs in this language are called scripts. They can be written right in a web page’s HTML and run automatically as the page loads.

Scripts are provided and executed as plain text. They don’t need special preparation or compilation to run.

In this aspect, JavaScript is very different from another language called Java.