A little JS impl using a regex and matchAll (avail in recent browsers):
matchAll
wave = crowd => [...crowd.matchAll(/[a-z]/g)].map(({0:match, input, index}) => input.substring(0,index) + match.toUpperCase() + input.substring(index+1))
Output:
> JSON.stringify(wave("go our team"),null,2) < "[ "Go our team", "gO our team", "go Our team", "go oUr team", "go ouR team", "go our Team", "go our tEam", "go our teAm", "go our teaM" ]"
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A little JS impl using a regex and
matchAll(avail in recent browsers):Output: