let func = (a) => {} // parentheses optional with one parameter
let func = (a, b, c) => {} // parentheses required with multiple parameters// 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();
multiplyfunc = (a, b) => { return a * b; }const = newfunc =(a,b)=>{
return a+b
}'use strict';
var obj = { // does not create a new scope
i: 10,
b: () => console.log(this.i, this),
c: function() {
console.log(this.i, this);
}
}
obj.b(); // prints undefined, Window {...} (or the global object)
obj.c()let add = (x, y) => x + y;
console.log(add(10, 20)); // 30;
Code language: JavaScript (javascript)