js arrow function arguments code example
Example 1: 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; };
Example 2: arrow function javascript
([a, b] = [10, 20]) => a + b; // result is 30
({ a, b } = { a: 10, b: 20 }) => a + b; // result is 30
Example 3: arrow function javascript
// Traditional Function
function (param) {
var a = param * 3;
return a;
}
//Arrow Function
(a, b) => {
let c = (a * b) + 3;
return c;
}
Example 4: es6 arrow function
// ES6
const prices = smartPhones.map(smartPhone => smartPhone.price);
console.log(prices); // [649, 576, 489]