![]() ![]() We have linked our script file in our HTML. See the Pen Hello world by Abhishek Nagekar on CodePen. Now open the index.html file, and just before the closing body tag ( ), insert this line. Just like we did for CSS, we’ll create a new file for writing JavaScript called ‘script.js’ in the portfolio directory. Similar to how we give directions to a stranger, a computer needs detailed instructions, defined as steps, to accomplish any simple or complex action. A program in JavaScript is like a sequence of steps. JavaScript is a programming language, and like most programming languages, it has some basic constructs that we’ll look at. The wait is finally over! Let’s get right to it. Attach a ‘click’ listener to HTML form elements.Use JavaScript basics: Variables, functions, and operators.We’ll only be learning parts of it that are relevant to us today, so we’ll list some good resources at the end if you’d like to learn more. Lastly, before we look at today’s itinerary, remember that JavaScript, just like HTML and CSS (but maybe even more so), is a vast language. Remember that Java is an entirely different language made for a different purpose (although you’ll still find it running on certain website backends). ![]() Beginners often get confused between the two languages. □Pro tip: Apart from the name itself, JavaScript has no relation to Java. js extension.Īs previously mentioned, JavaScript can be used to accomplish many useful operations on the frontend, like validating forms, alerting users, storing temporary data, and performing calculations-to name just a few. Just like HTML and CSS, JavaScript is written in plain text files with a. JavaScript was created to add ‘life to webpages’. ![]() Now that we’ve gotten a bird’s-eye view of JavaScript, let’s get into the more technical detail. The community support is very good, so if you get stuck, there’s a good chance that the problem and its solution already exist on the web. JavaScript is also a fun and rewarding language, which is especially important when you’re just getting started in software development. So, in that sense, it’s more accessible than some other languages like C and Java. When we say ‘easier’, we mean in terms of how quickly you can go from being a JavaScript novice to someone who can actually make a living writing professional, high quality JavaScript code. For starters, compared to other languages like C and Java, JavaScript is generally easier to learn. In short, it is everywhere-and for good reasons. It can also help create solid backends with platforms like Nodejs, runs desktop applications like Slack, Atom, and Spotify, and runs on mobile phones as Progressive Web Apps (PWAs). It is the foundation of frontend web development and is the key ingredient in frameworks like ReactJS, Angular, and VueJS. JavaScript, as you might know, is ubiquitous in today’s software development world. ![]() Welcome to the fifth and final day of your web development short course! Today, we’ll touch upon JavaScript and try to improvise a bit as we learn more about this third and final pillar of the web. You use a combination of science, art, and craft to determine what to do with them.” (Andrew Hunt) Why JavaScript? You start with a blank canvas and certain basic raw materials. □ “In some ways, programming is like painting. ![]()
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