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JavaScript JavaScript Basics (Retired) Making Decisions with Conditional Statements Combining Multiple Tests Into a Single Condition

Posted by fbriygig
fbriygig
15,370 Points

Can you mix && (and) and || (or) operators in the same conditional block?

for example:

if ( true && false || true ){....

if so, how would it run. What boolean would it create ?

if not, would it be possible using parenthesis inside the conditional statement?

nico dev
nico dev
20,364 Points
nico dev
nico dev
20,364 Points

Hey found your question interesting, especially when you mentioned the parenthesis, really caught my curiosity.

I found some interesting info here that includes a lot of different scenarios and in-depth explanations.

Hope that helps you also, or someone else whose curiosity demands to be answered (like mine!) :)

1 Answer

Per Karlsson
Per Karlsson
12,683 Points
Per Karlsson
Per Karlsson
12,683 Points

Yes you can mix them. Try this out:

var one = true;
var two = false;
var three = true;

if (one && two || three) {
  console.log("YAAAAY");
}

Try changing the variables around between true and false.

true && true || false = true
true && false || true = true;
false && false || true = true;
true && false || false = false;
fbriygig
fbriygig
15,370 Points

I'd imagine it'd become incredibly complex if anyone did it to any more depth, but it's great that the language is versatile enough that it can be done.

Thanks!