dalkegama

const someStringNum = "3.5";

+someStringNum + 2;   // returns 5.5
+null   // returns 0

dalkegama

const someNum = 30;

// Long
someNum.toString(); // returns "30"
10.toString();    // returns "10"

// Shorthand 👍🏽
`${someNum}`; // returns "30"
`10`          // returns "10"

dalkegama

const arrayOne = [1,2,3];

// Long way
const newArrayOld = arrayOne.slice(); // returns [1,2,3]

// Shorthand 👍🏽
const newArray = [...arrayOne]; // returns [1,2,3]

dalkegama

let arrayOne = [2, 4, 1];
let arrayTwo = [1, 3, 5];

//Long way
arrayOne.concat(arr2); // returns [ 2, 4, 1, 1, 3, 5 ]


// Shorthand 👍🏽
[...arr1, ...arr2]; // returns [ 2, 4, 1, 1, 3, 5 ]

dalkegama

const someArray = [1,3,2,1,2,3];

[...new Set(someArray)]; // returns [ 1, 3, 2 ];

dalkegama

const someString = "Dhanik";

// Long
someString.charAt(0); //returns "D"

// Shorthand
someString[0]; //returns "D"

dalkegama

if(someCondition){
	console.log("Hello World");
}
// Same if condition in a single line. 👍🏽
if(someCondition) console.log("Hello World");

dalkegama

if(someCondition !== undefined && someCondition !== null){
 // handle whatever
}

dalkegama

const objOne = { foo: "bar", x: 2 };
const objTwo = { foo: "bar", y: 5};

// Long way
const copiedObj = Object.assign({},objOne); // Object { foo: "bar", x: 2 }
const mergedObj = Object.assign(objOne,objTwo); //Object { foo: "bar", x: 2, y:5 }


// Shorthand way 👍🏽
const copiedObj = {...objOne}; // Object { foo: "bar", x: 2 }

dalkegama

const firstNum = 10;
const secNum = 20;

//Shorthand way 👍🏽
console.log(`Hi, this is how we should concatinate
with a multiliine string`);
//Hi, this is how we should concatinate
//with a multiliine string

//Shorthand way 👍🏽(Expression interpolation)