JavaScript is the engine that drives the internet. Virtually every one of your favorite websites uses JavaScript in some way or the other. From checking text input to creating alerts and animations, JavaScript finds many uses on a web page. Learning JavaScript is essential to becoming a front ...
The first way that we can write this program is by using thealert()method, which will display an alert box over your current window with a specified message (in this case, it will be “Hello, World!”) and anOKbutton that will allow the user to close the alert. Within the method we...
Learning Node.js will allow you to write your front-end code and your back-end code in the same language. Using JavaScript throughout your entire stack can help reduce time for context switching, and libraries are more easily shared between your back-end server and front-end projects. Also,...
Here are two common ways to execute JavaScript code: 1. Using the Browser Console Every modern browser has built-in developer tools that allow you to write and run JavaScript code directly in the console. Example: console.log("Hello, World!"); 2. Embedding JavaScript in an HTML File JavaSc...
In the "Security" tab section "Web content" mark the "Enable JavaScript" checkbox. Click on the "Reload the current page" button of the web browser to refresh the page. 1. 2. 3. 4. Opera 1. Click on Opera icon "Menu" and than "Settings". ...
How to work with document forms in JavaScript - In this tutorial, let us discuss how to work with document.forms in JavaScript. The document.form property returns all the form tags in the document. The forms property is read-only. The form property is th
write(d); function Date() { return 'This is the overriden function.'; } alert(Date()); Try to Overload a Function in JavaScript JavaScript does not allow overloading a function. Instead, it will override the function. We will create two functions named sum to add different numbers of...
expect(starWars.all).to.satisfy(isArrayOfString);functionisArrayOfString(array){returnarray.every(function(item){returntypeofitem === 'string'; }); } });//ccheck one of the valueit('should includ Asajj Ventress',function(){ expect(starWars.all).to.include('Asajj Ventress'); ...
Many Internet Web sites contain JavaScript, a scripting programming language that runs on the web browser to make specific features on the web page functional. If JavaScript has been disabled within your browser, the content or the functionality of the web page can be limited or unavailable. ...
How to add two arrays into a new array in JavaScript - An ordered group of indexed elements is represented by an array, which is a type of data structure. Merging two or more arrays to create a larger array that contains all the items from the original a