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## composing-software.md

      
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                tomarpremveer
                / composing-software.md
            
            
              Created
              January 21, 2021 11:01
                — forked from rosario/composing-software.md
            
              
                Eric Elliott's Composing Software Series
              
          
    Eric Elliott's "Composing Software" Series

A collection of links to the excellent "Composing Software" series of medium stories by Eric Elliott.

The Rise and Fall and Rise of Functional Programming
Why Learn Functional Programming in JavaScript?
A Functional Programmer’s Introduction to JavaScript
Higher Order Functions
Reduce
Functors & Categories
[Composing


## c3.js
const obj =   {
  name:"github",
  url:"github.com"
}
//to check if the color property is present on the object or not or it's value is null
if(obj.color === null || obj.color === undefined){
  console.log("this propery is not present on the obj")
}

// you can do this like this way

## c2.js
null == undefined // true

## c1.js
var a = 1
var b = 1

a == b // true
a === b //true
	const obj = {
	name:"github",
	url:"github.com"
	}
	//to check if the color property is present on the object or not or it's value is null
	if(obj.color === null \|\| obj.color === undefined){
	console.log("this propery is not present on the obj")
	}

	// you can do this like this way