vue-i18n CustomFormatter using the laravel replacement logic

CustomFormatter.js

// const i18n = new VueI18n({
//    formatter: new CustomFormatter(),
// });

export default class CustomFormatter {
    interpolate (message, values) {
        const capitalize = s => s.charAt(0).toUpperCase() + s.slice(1);

        Object.entries(values || []).forEach(([key, value]) => {
            value = '' + value;
            message = message
                .replace(`:${key}`, value)
                .replace(`:${key.toUpperCase()}`, value.toUpperCase())
                .replace(`:${capitalize(key)}`, capitalize(value));
        });

        return [message];
    }
}