Question

How to set a default value to function parameters in Node.js

Answer 1

function sum(x = 7, y = 12) {
    return x + y;
}

console.log(sum(5, 17)); // 5 + 17
console.log(sum(9)); // 9 + 12
console.log(sum()); // 7 + 12





      
/*
run:
      
22
21
19 
      
*/

 

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Answer 2

function multiply(a, b = 5) {
  	return a * b;
}

console.log(multiply(4, 13));

console.log(multiply(7));





      
/*
run:
      
52
35
      
*/

 

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