How to create a custom callback in JavaScript?
A callback is a function that is invoked after a function has finished its execution. As JavaScript is an event-driven language, it does not wait… Read More »
Category Archives: JavaScript
How to get the same behavior with confirm and bootstrap modal?
Bootstrap modal: In simple words, the Modal component is a dialog box/popup window that is displayed on top of the current page, once the trigger… Read More »
Difference between != and !== operator in JavaScript
!= operator The inequality operator (!=) is the logical opposite of the equality operator. It means “Not Equal” and returns true where equality would return… Read More »
How to change the shape of a textarea using JavaScript?
In General, Textarea will be in the form of rectangular or square shapes, but here we will deal with Unusual shapes of textarea which means… Read More »
Calculate the width of the text in JavaScript
Method 1: Creating a new DOM Element and measuring its width: A new “span” element is created with the createElement() method. Then added it to… Read More »
How to write shorthand for document.getElementById() method in JavaScript ?
The task is select the elements with id by using the shorthand for document.getElementById with the help of JavaScript. we’re going to discuss few techniques.… Read More »
How to pad a string to get the determined length using JavaScript ?
Method 1: Using the padStart() method: The padStart() method can be used to pad a string with the specified characters to the specified length. It… Read More »
How can a particular frame be targeted, from a hyperlink, in JavaScript?
The frames element was used to break a single browser window into multiple independent browsing contexts. Frames have been deprecated and should not be used… Read More »
How to store all dates in an array present in between given two dates in JavaScript ?
Given two dates and the task is to get the array of dates between the two given dates using JavaScript. Approach 1: Select the first… Read More »
How to detect the device is an Android device using JavaScript ?
The task is to detect a device, whether the device is Android Phone or not using JavaScript. Approach 1: Use navigator.userAgent property to get the… Read More »
How to check if a string is html or not using JavaScript?
The task is to validate whether the given string is valid HTML or not using JavaScript. we’re going to discuss few techniques. Approach Get the… Read More »
How to detect flash is installed or not using JavaScript ?
The task is to detect whether the user has installed Adobe Flash player or not with the help of JavaScript. we’re going to discuss 2… Read More »
How to convert seconds to time string format hh:mm:ss using JavaScript ?
Given a time in seconds and the task is to convert the time into a string format hh:mm:ss. There are two approaches to solve this… Read More »
How to add a tooltip to a div using JavaScript?
Adding tooltip to div element displays a pop-up, whenever the mouse hovers over div. Syntax: filter_none edit close play_arrow link brightness_4 code < div title… Read More »
How to check if an element has any children in JavaScript ?
The task is find out whether an element is having child elements or not with the help of JavaScript. We’re going to discuss few techniques.… Read More »
