arrow_backBACK TO DRILLS
Black BeltimmutabilitylockPREMIUM

Comparing Letters After Array Remapping

A component highlights a selected letter using letter === highlightedLetter. After updating the letters array with mapped copies, the highlight disappears even though the logical letter is still selected. Why?

lock

This Drill is Locked

This is a premium drill. Continue on to the next free drill in the sequence.