ember-codemod-remove-global-styles/dist/src/utils/css/get-class-to-styles/extract-root-class.js

Codemod to localize global styles

export function extractRootClass(selector) {
    const matches = selector.match(/^\.([\w-]+)/);
    if (matches === null) {
        return undefined;
    }
    return matches[1];
}