CODEWITHSUNDEEP
javascriptfunctionreturn
Serhii Zharkov
Serhii Zharkov

Reputation: 564

Why function returns boolean value?

I am writing my own function which returns lower argument between two arguments.

My first solution was:

function min(a, b) {
  if (a < b)
    return a;
  else
    return b;
}

console.log(min(0, 10));
// → 0

But I wanted to simplify it and wrote another one function: 

function min(a, b) {
   return a ? a < b : b;
}
console.log(min(0, 10));
// → true

Why my second function returns boolean value instead of number? Can I change this behavior?

Upvotes: 0

Views: 42

Answers (2)

dckuehn
dckuehn

Reputation: 2475

Your ternary operater is a little funky.

It should be boolean ? returnValueForTrue : returnValueForFalse;

So yours is doing a ? boolean : b and I'm not sure what that actually turns into. a ? boolean would turn into a boolean.

So yours should be

return a < b ? a : b;

Upvotes: 1

kiranvj
kiranvj

Reputation: 34147

It should be 

function min(a, b) {
   return a < b ? a : b;
}
console.log(min(0, 10));

Upvotes: 2

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