Closure in Javascript refers to the ability of a function to access variables that are declared outside of its own scope. This means that a function can “remember” the values of its surrounding variables even after those variables are no longer in scope.
Read More »Closure in Javascript: What, How to use, memory leaks
In this article we will look into top 10 Javascript interview questions and their answers. JavaScript is a scripting language used for creating dynamic and interactive websites. It is an object-oriented language that can be run on both the client-side and server-side of the web.
Read More »Javascript interview questions: Unlock top 10 Q’s with A’s
In this article we will learn how to use splice method in Javascript. The JavaScript splice() method allows you to modify an array by adding or removing elements from it.
There are multiple way using which we can find index in Javascript. We will use indexOf, findIndex and lastIndexOf methods. Find below explanation and examples for the same.
Read More »Find index in Javascript: How to use JS inbuilt methods
In this article we will try to understand the NodeJS event loop model. The Node.js event loop is a fundamental aspect of how Node.js operates. It is responsible for handling events, executing asynchronous tasks, and providing a non-blocking I/O mechanism.
Read More »Better understand the NodeJS event loop model
In this post we will see how can named capture group and use the name in code. It makes the code more readable and maintenable. We will take an example where we will get price and quantity information from a string.
Read More »How to use named capture group in Javascript regex
In this post we will see some example of regular expression to understand regex flags i,g,m in Javascript.
Read More »Guide to understand regex flags i,g,m in Javascript
In this post we will see some example of regular expression using which we will find words, non-words, numbers, non-numbers, whitespaces and non-whitespace characters. We will use special characters from regular expression Character classes. These special characters start with the ‘\’ backward slash. There are many more than the ones that I have displayed.
Read More »How to get word, number, whitespace using Javascript regex
In this post we will see javascript regular expression that will help us to validate phone format in specific format. You may use the example and create a regex by modifying the same for date format or any other format or string. We will be using capture group and to understand the please take look at my article about named group.
Read More »How to to validate phone format using regex
In this post we will see javascript regular expression that will match anything but two words.
Read More »How to match anything but two words using regex