arrow in js 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

const suma = (num1, num2) => num1+num2
console.log(suma(2,3));
//5

Example 3: how to make javascript function consise

multiplyfunc = (a, b) => { return a * b; }

Example 4: javascript arrow function

let errow = () => {
  //the code you want to return;
};
Or
let errow = ('paramiter') => {
//the code you want to return
}

Example 5: concise body arrow functions javascript

const plantNeedsWater = day => day === 'Wednesday' ? true : false;

//If only 1 Parameter no () needed
//Single line return is implicit
//Single line no {} needed

Example 6: arrow function javascript

hello = () => {
  return "Hello World!";
}