arrow function rec
(param1, param2, …, paramN) => { statements }
(param1, param2, …, paramN) => expression
// equivalent to: => { return expression; }
// Parentheses are optional when there's only one parameter name:
(singleParam) => { statements }
singleParam => { statements }
// The parameter list for a function with no parameters should be written with a pair of parentheses.
() => { statements }arrow function in javascript
//function old way
function PrintName(name){
console.log("my name is ", name) ;
}
// Arrow function es6
const PrintName = (name) => {
return console.log("my name is " , name) ;
}arrow function javascript
const suma = (num1, num2) => num1+num2
console.log(suma(2,3));
//5arrow function javascript
//If body has single statement
let myFunction = (arg1, arg2, ...argN) => expression
//for multiple statement
let myFunction = (arg1, arg2, ...argN) => {
statement(s)
}
//example
let hello = (arg1,arg2) => "Hello " + arg1 + " Welcome To "+ arg2;
console.log(hello("User","Grepper"))
//Start checking js code on chrome inspect optionArrow Functions
// The usual way of writing function
const magic = function() {
return new Date();
};
// Arrow function syntax is used to rewrite the function
const magic = () => {
return new Date();
};
//or
const magic = () => new Date();how to make javascript function consise
multiplyfunc = (a, b) => { return a * b; }Copyright © 2021 Codeinu
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