Javascript programs for beginners12/3/2023 ![]() Think of how you call a person by their name as opposed to ‘human’ or ‘one head, two eyes, one nose…’ and so on. Variables are friendly names that hold data. We’re ready to write some JavaScript! Let’s have a look at some important concepts. If you followed along with the last section, you have correctly set up the script file. You can do that in the CodePen below too! Notice the dialog box at the top? That’s your first line of JavaScript, the alert code, executing. Just to make sure it works, write the following code into your script.js file. 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.
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