Interval Cancellation

function cancellable(fn: Function, args: any[], t: number): Function {
    fn(...args);
    const id = setInterval(() => {
        fn(...args);
    }, t)
    const cancelFn = () => clearInterval(id);
    return cancelFn;
};

/**
 *  const result = []
 *
 *  const fn = (x) => x * 2
 *  const args = [4], t = 35, cancelT = 190
 *
 *  const start = performance.now()
 *
 *  const log = (...argsArr) => {
 *      const diff = Math.floor(performance.now() - start)
 *      result.push({"time": diff, "returned": fn(...argsArr)})
 *  }
 *       
 *  const cancel = cancellable(log, args, t);
 *
 *  setTimeout(() => {
 *     cancel()
 *  }, cancelT)
 *   
 *  setTimeout(() => {
 *    console.log(result)  // [
 *                         //      {"time":0,"returned":8},
 *                         //      {"time":35,"returned":8},
 *                         //      {"time":70,"returned":8},           
 *                         //      {"time":105,"returned":8},
 *                         //      {"time":140,"returned":8},
 *                         //      {"time":175,"returned":8}
 *                         //  ]
 *  }, cancelT + t + 15)    
 */