Software Engineering

Snigdha Paul November 30, 2024 No Comments

How to check if an html element exists or not using jQuery?

We can check an html element’s existence through checking its length. If length is greater than 0 that means element exist and if 0 that…

Saikat Mondal November 23, 2024 No Comments

How to Submit a Form with jQuery from an External Link

To submit a form using jQuery when a link outside of the form is clicked, you can use the submit() method of jQuery to trigger…

Snigdha Paul November 23, 2024 No Comments

How to add comments in regex?

We can explain our regular expression within the expression using comments. Syntax:(?#Commented Code) Suppose we have a two strings below:Hello worldhello World Regex to match…

Anirban Poddar November 23, 2024 No Comments

How to use map, reduce and filter in javascript?

The map(), reduce() and filter() are array functions are used for manipulate or modifying an array instead of using the loops. Here is an example…

Sandeep Mandal November 23, 2024 No Comments

How to group elements of an object in JavaScript?

We can do this using Object.groupBy() method. This method groups elements of an object according to values returned from a callback function. Example: const users…

Rohit Patra November 23, 2024 No Comments

How To The Write `<cffile action=”readBinary”>` Function In ColdFusion?

Description:- It reads a binary file (such as an executable or image file) on the server, into a binary object parameter that you can use…

Anirban Poddar November 16, 2024 No Comments

How to get next and previous sibling elements and inner text?

To get next and previous sibling and its inner text we can use nextElementSibling and previousElementSibling property in Javascript, nextElementSibling returns the next element (not text and comment…

Saikat Mondal November 16, 2024 No Comments

Enable Multiple User Roles in WordPress for Better Permissions Management

In WordPress, users are typically assigned a single role, such as Administrator, Editor, or Subscriber. However there are situations where a user might need multiple…

Snigdha Paul November 16, 2024 No Comments

How to match a pattern consecutively exactly ‘n’ number of time? Fix issue raised by using {1},{2},…,{n}.

Suppose we want to search the word Hello for only two times side by side in a line and we write a regex (?:Hello){2} Now…

Sourav Paul November 16, 2024 No Comments

Double not `!!` operator in JavaScript?

The ! in JavaScript, also called bang, is the logical not operator. If you place this operator in front of a boolean value, it will…

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