tom-weatherhead/common-utilities.ts

// github:tom-weatherhead/common-utilities.ts/src/promises.ts

/* eslint-disable @typescript-eslint/ban-types */
/* eslint-disable @typescript-eslint/explicit-module-boundary-types */
/* eslint-disable @typescript-eslint/no-explicit-any */

export function promisify(fn: Function, context: any): (...args: any[]) => Promise<any> {
    return (...args: any[]) => {
        return new Promise((resolve, reject) => {
            function customCallback(err: any, result: any) {
                if (err) {
                    reject(err);
                } else {
                    resolve(result);
                }
            }

            args.push(customCallback);
            // fn.call(context || this, ...args);
            fn.call(context, ...args);
        });
    };
}