Learn the fundamentals of JavaScript to make the React journey smooth.

Android Development with Ionic and React

Most of React comes down to JavaScript ES6 and its features and syntax. The fundamentals also include ternary operators, shorthand versions in the language, objects such as “this”, and JavaScript’s built-in functions (map, reduce, filter). It also includes general concepts such as composability, reusability, immutability, or higher-order functions. While we don’t necessarily need to master all these before starting with React, they will come up while practicing it, and learning these concepts will benefit us. 
This module will give us comprehensive JavaScript skills that will make our React journey smooth and straightforward.

JavaScript Fundamentals Before Learning React

## Operators

JavaScript operators can be categorized into two main categories i.e., *Unary* and *Binary* operators. Unary takes only one operand whereas binary takes two. 

### 1. Binary Operators
Binary operators can further be divided into following types: 
- *Arithmetic Operators* ($+, -, *, /$)


# Operators

JavaScript operators can be categorized into two main categories i.e., *Unary* and *Binary* operators. Unary takes only one operand whereas binary takes two. 

## 1. Binary Operators
Binary operators can further be divided into following types: 
- *Arithmetic Operators* ($+, -, *, /$)


//Arithmetic Operators
console.log("****Arithmetic Operators****\n")
console.log("2 + 3 = " + (2 + 3))
console.log("2 - 3 = " + (2 - 3))
console.log("2 * 3 = " + (2 * 3))
console.log("6 / 3 = " + (6 / 3))
console.log("7 / 3 = " + (7 / 3))

- *Assignment Operators* (=, +=, -=, *=, /=)




//Assignment Operators
console.log("\n****Assignment Operators****\n")
var x = 3;
console.log("x = " + x)
console.log("x += 1 gives x = " + (x+=1)) // adds 1 = value of x=4
console.log("x -= 1 gives x = " + (x-=1)) // subtracts 1 = value of x=3
console.log("x *= 3 gives x = " + (x*=3)) // multiplies 3 with x = value of x=9
console.log("x /= 3 gives x = " + (x/=3)) // Divides 3 with x = value of x=3

This lesson lists the commonly used JavaScript's expressions and operators, including assignment, comparison, arithmetic, bitwise, logical and string.

Getting Started

Variables, Operators & Expressions

Functions

Classes

Modules

React

Appendix

Conclusion

Operators & Expressions in JS

Operators

1. Binary Operators