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async function limitedPromiseAll<T>(promises: (() => Promise<T>)[], limit: number) {
    const promisesCopy = promises.slice()
    const factory = function () {
        return promisesCopy.shift()
    }

    const results: T[] = []
    const pipelines: (() => Promise<T>)[] = []
    while (pipelines.length < limit) {
        const pipline = async () => {

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If using Typescript to write a ReactNative Project in VSCode, you'll find that VSCode cannot stop at any breakpoint in TypeScript files. You must create breakpoints in JS files.

This post will answer why this problem appears and how to solve that.

Enviroment: VSCode (1.1.1 or 1.2.0) and ReactNative Tool Extension (0.1.4)

Solution Target: Debugger will work on break points in TypeScript files, in a ReactNative Project

Example Project structure:

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"use strict"
const fs = require("fs")
const path = require("path")
const transformer = require("react-native/packager/transformer")

/*
  1. put this file at your react native project workspace root,

  2. then run command:
    `react-native start --transformer ./transformer.js`