Basic and most common JavaScript interview questions and answers. Question 1: What is closure in JavaScript? Answer: A closure is a function that has access… Read More »JavaScript interview questions and answers | Infographic
How to insert variables in JavaScript string? Using Template literals you can put variables inside JavaScript strings. Template literals can contain placeholders. These are indicated… Read More »How to insert variables in JavaScript string? | Example code
You can declare a function with optional parameter using Logical OR operator (‘||’) or Assignment operator (“=”), etc in JavaScript. JavaScript function optional parameter can… Read More »JavaScript function optional parameter | 3 Ways Examples code
First, static variables preserve their previous value in their previous scope and are not initialized again in the new scope. But JavaScript doesn’t support static… Read More »JavaScript static variable | Create and Use examples
How to use a ternary operator in JavaScript without else or empty? Is it possible? A ternary operation is called ternary because it takes 3… Read More »JavaScript ternary operator without else condition | Is it possible?
How to call a child function inside a function from another function in Javascript? Want to call the function HelloAgain() from MyFunction(). Answer: You can’t.… Read More »Calling a Function defined inside another function in JavaScript | Example
Generally, callback function not required for addition operation but it could use to show the result. Call the Addition (addNumber) function with a callback, and… Read More »Write a JavaScript code to add two numbers using the call back function
The difference between: var functionName = function() {} and function functionName() {} in Javascript? There are two ways of declaring functions in JS. Which are… Read More »What is difference between var functionName = function vs function functionName
The simplest way to convert the set to Array is just to spread the set inside square brackets [ ]. Another way convert set to… Read More »JavaScript set to Array | Simple example code
Use id in HTML button and removeChild method to remove button Using JavaScript. Example code remove HTML button Using JavaScript In the example we have… Read More »JavaScript remove button| Example code Simple