javascript

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

Ruby on Rails : Callbacks V/S Observers

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Observers 🧐 Observer lives longer.It can be attached & detached at any time.It is used when method is not directly associated to life cycle of Active Record objects.If you want to create observer with command-line you need to add gem first because without observer gem you couldn’t run any observer generator command so first add … Read more Ruby on Rails : Callbacks V/S Observers

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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