Making Decisions

Enemy 1 of 5

An if runs its { } block only when the condition evaluates to true; else covers everything else, so exactly one of the two blocks runs. Compare values with > , < , >= , <= , and === (strict equality, checking both value and type).

TypeScript, like modern JavaScript, favors === over == for comparisons — === never tries to convert one type to another to force a match, so the result is always predictable. Because temperature here is explicitly typed as number, TypeScript also guarantees you can never accidentally compare it against something incompatible without at least being warned.