What is JavaScript?

Discover the basics of JavaScript, a popular programming language used for creating interactive web pages. Learn through simple examples and gain a better understanding of its versatility and ease of use, perfect for beginners in web development.

This YouTube channel is packed with awesome videos for coders!

Tons of videos teaching JavaScript and coding. Cool live streams!

Click Here to check out the Channel!

JavaScript is a programming language that allows you to create dynamic and interactive web pages. It’s an essential tool for web developers who want to create engaging user experiences and add website functionality.

At its core, JavaScript is a scripting language designed to run in web browsers. This means that it can be used to manipulate web pages in real time, allowing you to create animations, interactivity, and user-friendly features.

One of the most basic examples of JavaScript in action is the “alert” function. This function displays a pop-up message to the user like this:

alert("Hello, world!");

This code displays the message “Hello, world!” in a pop-up window when the user loads the web page.

Another common use of JavaScript is form validation. You can use JavaScript to check whether a user has filled out a form correctly before submitting it.

Here’s an example:

function validateForm() {
  var name = document.forms["myForm"]["name"].value;
  if (name == "") {
    alert("Please enter your name.");
    return false;
  }
}

This code checks whether a form’s “name” field has been filled out. If it hasn’t, it displays a pop-up message asking the user to enter their name. JavaScript is a versatile language that can be used for a wide range of applications, from web development to game development to desktop and mobile applications. It’s also constantly evolving, with new features and updates being released regularly.

In conclusion, JavaScript is a powerful and essential tool for web developers who want to create dynamic and interactive web pages. Whether you’re just starting out or an experienced developer, learning JavaScript is a great way to enhance your programming skills and take your web development projects to the next level.