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what is the return value of querySelectorAll and getElementsBy* and which is more preferred?

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querySelectorAll and getElementsBy* are two methods used to select elements from the DOM (Document Object Model) in JavaScript. 1) querySelectorAll: The querySelectorAll method returns a non-live NodeList of all elements matching a CSS selector within the document. The returned NodeList is a static collection of elements and is not updated when the DOM is updated. … Read more what is the return value of querySelectorAll and getElementsBy* and which is more preferred?

How JavaScript is different from python

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JavaScript and Python are popular programming languages used for different purposes. Some key differences between the two include: Syntax Python has a more straightforward and simple syntax, while JavaScript uses a syntax that is closer to C programming language. Interpreted vs Compiled Python is an interpreted language, meaning that its code is executed line by … Read more How JavaScript is different from python

Explain: Arrow function or fat arrow function

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What is arrow function
Arrow function also known as fat arrow function

The best feature ever release by javascript is the Arrow function. An arrow function is also known as a fat arrow function. Basically the use of arrow function is a concise way to write the function in javascript.

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Explain: Three dots or spread operator

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Three dots or spread operator
Javascript Three dot is spread operator or syntax

Unbelievable Feature release by ES6. it’s called spread operator or rest operator
The spread operator is used for spread syntax. This operator use in array and object. We also called spread elements

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