programming-examples/Input a string and converts upper case letters to lower and vice versa.js at 8258e10e80f15a440e8fdcf2cec04c76ed334301 - programming-examples - michuIT: Everything is code

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     swapcase = function swapcase(str) {
             return str.replace(/([a-z]+)|([A-Z]+)/g, function(match, chr) {
                 return chr ? match.toUpperCase() : match.toLowerCase();
             });
         }
     console.log(swapcase('AaBbc'));