All JavaScript functions return something. However, if your function is async it’s going to return a Promise, so you can use the keyword await to get the value that the promise resolves to....
Object.freeze is a handy tool that helps you make an object immutable in JavaScript. Object.freeze(someObject); If you try use the delete keyword or an assignment operator = after freezing the object with Object....
You can remove properties (fields) from the JavaScript objects using the delete keyword. const user = { name: 'John', age: '25', isLearning: true }; delete user.age; delete user['isLearning']; console.log(user.name); // John console....
If you want to redirect to another page with JavaScript, you can use the window.location object. This object is part of the window global object and has a property called href....
A missing "use strict" error is common when you use ESLint. There are 2 possible fixes to it: add the statement “use strict” in double quotes as a first line in your JS file "use strict" //the rest of your JS code goes below // AND must be in a strict mode add a custom ESLint rule (as a comment!...
The “strict mode” was introduced in ECMAScript 5. It allows you to put your script into the “strict” operating mode which prevents certain (potentially dangerous) operations. ES6+ classes and native ECMAScript modules have strict mode enabled by default....
The easiest way to remove a specific item from the JavaScript array is the splice method. ...
HTML stands for HyperText Markup Language. It is a programming language for creating the structure and the contents of the website. Every website you visit including this one which you are reading right now is built with the help of HTML....
The style tag is used to define an internal style sheet in an HTML file. It is the HTML element that adds CSS stylings directly into the HTML file. Inside the style tag, you can write CSS code as if you were in a CSS file....
To change the color when hovering in CSS, you will use the CSS selector called :hover. The :hover is a CSS pseudo-class that will select the HTML element when the user hovers over with the mouse....