Arrow functions allow us to write shorter function syntax.
Let us understand this with an example:
Before Arrow function:
function hello() {
return "Hello World!";
}
console.log(hello());
Output: Hello World!
After Arrow function:
hello = () => {
return "Hello World!";
}
console.log(hello());
Output: Hello World!
Let us understand with one more example:
Before Arrow function:
let x = myFunction(1, 2);
function myFunction(a, b) {
// Function returns the sum of a and b
return a + b;
}
console.log('before arrow function ==> '+x);
Output:
before arrow function ==> 3
After Arrow function:
myFunction = (a,b) => {
return a + b;
}
console.log('after arrow function ==> '+myFunction(2,3));
Output:
after arrow function ==> 5
