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May 8, 2021

Javascript tricky things that you need to know

Null vs Undefined null is an empty value. null has been assigned. let name = null; console.log(name); // null Undefined means a variable has been declared, but no value was assigned. let name; console.log(name); // undefined 2. double equal (==) vs triple equal (===) double equal (==) in JavaScript is…

3 min read

May 7, 2021

10 Things You Need To Know In React

1. Components: react components are a piece of react application. react component is reusable. react application make by many pieces of component. React components can be “stateful” or “stateless.” 2. Functional component: we can create component in 2 ways. one is functional component other is a class component. here we…

3 min read

May 6, 2021

javascript few things that you need to know

1. primitive data type in javascript there are two types of data. one is primitive data other one is object data. here we will discuss primitive data types. there are 6 primitive data types that are string number boolean undefined symbol null. BigInts primitive data are store in Stack memory…

3 min read

May 5, 2021

A few popular methods of array

If you want to work with data in javascript, the name of the array comes up. there are many array methods. today we will discuss some of the most used methods in an array. 1. concat() concat method is used to merge two or many more arrays and this method returns…

2 min read