Polyfill for matchAll. example:matchAll use casse; yourString.matchAll( /your-regex/ )

matchAllPolyfill.js

// polyfill for matchAll
    function matchAllPolyfill(regexPattern, sourceString) {
        let output = []
        let match
        // make sure the pattern has the global flag
        let regexPatternWithGlobal = RegExp(regexPattern, "g")
        while (match = regexPatternWithGlobal.exec(sourceString)) {
            delete match.input
            output.push(match)
        }
        return output
    }
// You can call to get array output
// let matches = matchAllPolyfill(regEx, yourString);

For an old browser like Microsoft edge, there is no advanced function support like .matchAll
You can use this polyfill function to support those browsers.
just call like this
matchAllPolyfill(regEx, yourString);