Return Early Pattern for Functions, what's different?

1

Why…

**if (a || b <0) {**
**return undefined;**
**}**

does not work the same as:

**if (a < 0 || b < 0) {**
**  return undefined;**
**}**
2

Welcome!

if(a) return undefiend

What values for a are truthy?

3

truthy?

a < 0 || b <0 vs a || b <0

is it the same meaning?

4

let a=1

false (depending on b)

true (doesn’t matter what b is)

What values for a result in false when you just have if(a)?

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5

Thanks a lot!

a || b < 0;

just requires a to be true to carry on with…

=)

1 Like