Function registerMonitor

tfjs-core/src/io/progress.ts:39–48

(promise: Promise<T>)

  let resolvedPromise = 0;

  const registerMonitor = (promise: Promise<T>) => {
    promise.then(value => {
      const fraction = startFraction +
          ++resolvedPromise / promises.length * (endFraction - startFraction);
      // pass fraction as parameter to callback function.
      onProgress(fraction);
      return value;
    });
    return promise;
  };

  function checkPromises(promises: Array<Promise<T>>): void {
    assert(