jsmodern/dist/string/to-case.js

An extension to existing JavaScript, influenced by other great languages such as Rust, Dart, Java, Golang, etc.

export function preCase(s) {
    return !s.length ?
        '' :
        s.replace(/[^a-zA-Z0-9]+/g, '-')
            .replace(/([^A-Z])([A-Z])/g, (_, c0, c1) => {
            const cc1 = /[A-Za-z0-9]/.test(c0) ? `-${c1}` : c1;
            return `${c0}${cc1}`;
        })
            .toLowerCase();
}
export function postCase(s, delimiter = '') {
    return !s.length ? '' : s.replace(/[^a-zA-Z0-9]/g, delimiter);
}
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