How to force Input field to enter numbers only using JavaScript ?
In this article, we are going to learn how can we force the Input field to enter numbers only using JavaScript....
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How to create an image element dynamically using JavaScript ?
Let’s explore how to dynamically create an <img> element in HTML using JavaScript. When a button is clicked, we’ll generate the <img> element and append it to the document....
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How to get selected value in dropdown list using JavaScript ?
Dropdown lists (also known as select elements) are commonly used in web forms to allow users to choose from a predefined set of options. When a user selects an option from the dropdown, we often need to retrieve the chosen value programmatically....
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Check if an array is empty or not in JavaScript
For doing any operation on the array it is important to have elements in an array. we can check the presence of elements in an array by calculating the length of that array, also there are many other ways to check whether the array is empty or not....
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JavaScript Interview Questions and Answers
JavaScript (JS) is the most popular lightweight scripting and compiled programming language. It was developed by Brendan Eich in 1995. It is well-known as a scripting language for web pages, mobile apps, web servers, and many more. It is an important language for aspiring front-end and back-end developers. some job roles demand individuals to be fluent in JavaScript. It is used by top IT companies such as Evernote, LinkedIn, Microsoft, Opera, NASA, and Meta because of its DOM manipulation, asynchronous JavaScript, error handling, and JavaScript frameworks in which it may be used. So, to get into these companies, you need to complete these Top JavaScript interview questions which can make you seem like an expert in front of recruiters....
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How to trigger a file download when clicking an HTML button or JavaScript?
In today’s digital age, numerous applications offer the feature to upload and download files. For instance, plagiarism checker tools enable users to upload a document file containing text. The tool then checks for plagiarism and generates a report, which can be downloaded by the user....
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How to get client IP address using JavaScript ?
Imagine your computer as your apartment. Just like each apartment has a unique address for receiving mail, your computer has an IP address that helps it receive information from the internet. This IP address acts like a label that identifies your specific device on the vast network of computers, ensuring the data you request reaches the right place....
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How to change the background color after clicking the button in JavaScript ?
In this article, we will learn how we can change the background color of an element once a button is clicked by the user using JavaScript and jQuery....
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How to compare two arrays in JavaScript ?
We will see how to compare two arrays in JavaScript. First, we need to compare whether the length of both arrays should be the same or not, and then whether objects present in them are of the same type and whether each item of one array is equal to the other array or not....
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How to check if an array includes an object in JavaScript ?
In JavaScript, an array acts like like list. It’s a way to group multiple items together under one name. You can store different things in your list, like numbers, words, or even other lists. Each item in the list has its own place, and you can access it using a number called its “index.”...
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How to detect browser or tab closing in JavaScript ?
A tab or window closing in a browser can be detected by using the beforeunload event. This can be used to alert the user in case some data is unsaved on the page, or the user has mistakenly navigated away from the current page by closing the tab or the browser....
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How to select a random element from array in JavaScript ?
We are going to learn how can we select a random element from an array in JavaScript. we will be given an array and we need to print a random element from that array....
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