Loops

Learn about loops in Go.

range iterator returns two values

A trap for early beginners is that for-range in Go works a bit differently than its equivalents in other languages. It returns one or two variables: the first of those two is an iteration index (or a map key if a map is iterated on) and second is the value. If only one variable is used, then it’s the index:

Get hands-on with 1400+ tech skills courses.