"es6 arrow function" Code Answer's
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arrow function javascript
// Normal Function in JavaScript
function Welcome(){
console.log("Normal function");
}
// Arrow Function
const Welcome = () => {
console.log("Normal function");
}
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 }
Source: developer.mozilla.org
javascript arrow function
// Non Arrow (standard way)
let add = function(x,y) {
return x + y;
}
console.log(add(10,20)); // 30
// Arrow style
let add = (x,y) => x + y;
console.log(add(10,20)); // 30;
// You can still encapsulate
let add = (x, y) => { return x + y; };
Source: www.javascripttutorial.net
es6 arrow function
const multiplyES6 = (x, y) => x * y;
Source: www.sitepoint.com
es6 arrow function
//ES5
var phraseSplitterEs5 = function phraseSplitter(phrase) {
return phrase.split(' ');
};
//ES6
const phraseSplitterEs6 = phrase => phrase.split(" ");
console.log(phraseSplitterEs6("ES6 Awesomeness")); // ["ES6", "Awesomeness"]
Source: www.sitepoint.com
es6 arrow function
// ES6
const prices = smartPhones.map(smartPhone => smartPhone.price);
console.log(prices); // [649, 576, 489]
Source: www.sitepoint.com
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