$ cnpm install swap-case
Transform a string by swapping every character from upper to lower case, or lower to upper case.
npm install swap-case --save
import { swapCase } from "swap-case";
swapCase("string"); //=> "STRING"
swapCase("dot.case"); //=> "DOT.CASE"
swapCase("PascalCase"); //=> "pASCALcASE"
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