Convert a string To Title Case

A question came up on the CFML Slack channel today about converting a string to Title Case. I thought I’d see if I could solve it using a regular expression and this is what I came up with:

s = "iTSy bITSY TeeniE wEENIE Yellow pOLKADOT BiKiNi";

titleCase = REReplaceNoCase(s, "\b(\w)(\w+)\b", "\U\1\L\2", "all");

writeDump(titleCase); // Itsy Bitsy Teenie Weenie Yellow Polkadot Bikini

I tested this on ACF10, ACF11, ACF2016, ACF2018 and Lucee.

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