I am going to show how to use JavaScript setInterval to repeat a function again and again after a fixed time delay. I will write the syntax, show examples, and then stop the repeated execution with clearInterval using setTimeout. What is JavaScript setInterval setInterval is a built-in function. It is already available in JavaScript, so … Read more
JavaScript destructuring is a way to unpack values from your arrays or objects into separate variables. Taking out the values from arrays and objects and putting them into separate variables is basically what destructuring does. I will walk through it with very simple examples so you can see exactly how it works. Understanding JavaScript Destructuring … Read more
I am going to explain how to handle events in JavaScript. An event is something that happens on the page like a button is clicked, a key is pressed, or the mouse moves. JavaScript can listen to these events and run code in response, and that is called event handling. An event is a user … Read more
We are going to learn how to use JavaScript Closures. It is one of the most confusing topics in JavaScript, but I will try my best to explain in the easiest way. A closure is created when a function remembers the variables from its outer scope even after that outer function has finished running. The … Read more
We are going to learn how to reverse a string in JavaScript. JavaScript strings do not have a direct reverse method. I will follow three steps using array methods to convert the letters of your string in a reverse order. The basic working of this whole approach is simple. Convert the string to an array, … Read more
Event listener is a way to tell JavaScript that when something happens like when we click on a button, run this code. It is one of the most flexible and recommended ways to handle events in modern JavaScript. We will understand it step by step. Basic setup for JavaScript Event Listeners I am … Read more
Logical operators in JavaScript help us make decisions using conditions. They normally return true or false values based on our logic. Here is how to implement and use them step by step. JavaScript Logical Operators: AND (&&) The logical AND operator means both conditions must be true. In a statement where you are … Read more
Template literal is a special way to create strings in JavaScript. It allows you to insert variables and write multi-line strings easily. I will explain every concept related to template literals and show how they make string handling more readable and flexible. What are JavaScript Template Literals A template literal is a string … Read more
Filtering in JavaScript lets me keep what I want from an array and discard the rest. Think of it like separating clean water from the impurities. The idea is simple: keep elements that satisfy a condition and throw away the ones that do not. A filter method is used to create a new array by … Read more
I am going to show how to use reduce in JavaScript. We will understand how to reduce a big array into a single value using the reduce function. It is like reducing a long list of numbers into just their sum or their product. The reduce method is used to reduce an array into a … Read more