What this snippet does
&& returns the first falsy or last value; || returns the first truthy or last value — used heavily for defaults.
Expected output
2 0 1 2 default other
Why practise typing this
Typing operators code builds muscle memory for the symbols and indentation JavaScript uses most, which prose-based typing tests never cover. DevType measures your words per minute and accuracy on this snippet and tracks the individual characters you mistype, so later lessons can target them.
More JavaScript practice
- strict equalityOperators · beginner
- nullish coalescingOperators · beginner
- nullish defaultsOperators · beginner
- optional chainingOperators · beginner
- nested accessOperators · intermediate
- logical assignmentOperators · intermediate