Jeff Atwood, the founder of Stack Overflow, a hub for all things development, famously stated, “Any program that can be written in JavaScript will eventually be written in JavaScript.” Larson interprets this t
✨ Learn to build modern web applications using JavaScript and Spring Boot I started this blog as a place to share everything I have learned in the last decade. I write about modern JavaScript, Node.js, Spring Boot, core Java, RESTful APIs, and all things web development....
JavaScript Copy function sayHello(message: string) { console.log("Person component says", message); } Notice the type annotation to the parameter, ensuring that the single parameter must be a string; this is the bedrock of TypeScript, and ensures that only strings c...
Speaking of debugging, one of the things scaffolded out is the .spec.ts file that defines a basic set of unit tests for the component, invoked as part of the test suite that gets executed when running either npm test or ng test. (The test rig is set up to automatically pick...
Say you want to add an item at the beginning of an array.To perform this operation you will use the splice() method of an array.splice() takes 3 or more arguments. The first is the start index: the place where we’ll start making the changes. The second is the delete count ...
Disabling autocomplete (autocomplete = off) might seem a little strange, but this needs to be done to disable the browser’s automatic suggestions, which will get in the way of our own. A couple of other things to note are theonKeyUpattribute, which calls our JavaScript function, and use...
You want to use technologies that will help you succeed in the short- and long-term. And they’re not always easy to pick out. “I’m overwhelmed,” you say, as you feel overwhelmed. Your energy is not the same as it once was. You try to piece things together, but it’s too ...
Create an Object using Object Constructor The second way to create an object in JavaScript is using the in-built Object() constructor. You can use the new keyword to initialize an instance of Object: const fruits = new Object() Now to add properties to the above object, you have to use...
For more in-depth JavaScript knowledge and challenges, get out our free book: Learn to Code with JavaScript.Things to Be Aware of Before StartingHere are a few things to know before starting:This is a front-end tutorial, meaning anyone who knows how to look through the source code of a ...
On Monday, I shared a new interactive Code Sandbox I had built using vanilla JavaScript, and explained how I live render code into an iframe. Today, I wanted to share how I syntax highlight code as the user types in real time. Let’s dig in! The one simp