ali-master

1. Min-Heap Implementation in TypeScript

We first define a generic MinHeap class with the following operations:

• size(): Returns the number of elements in the heap.
• peek(): Returns the minimum (root) without removing it.
• push(value): Inserts a value, keeping the heap structure.
• pop(): Removes and returns the minimum (root).
• heapifyUp() and heapifyDown(): Internal methods to maintain heap order.

ali-master

import ko from 'knockout';

import {getLogger} from 'Util/Logger';

export const serverTimeHandler = {
  computeTimeOffset(serverTimeString: string): void {
    const timeOffset = Date.now() - new Date(serverTimeString).valueOf();
    this.timeOffset(timeOffset);
    this.logger.log(`Current backend time is '${serverTimeString}'. Time offset updated to '${this.timeOffset()}' ms`);
  },

ali-master

import { defineConfig } from "@farmfe/core";

export default defineConfig({
  plugins: [
    {
      name: "NestJS",
      priority: 0,
      config(config) {
        const inputFileEntry = Object.values(config?.compilation?.input || {})[0] ?? "src/main.ts";
        const mode = config.compilation.mode ?? process.env.NODE_ENV ?? "development";

ali-master

import React, {useState} from "react";

export const DragAndDrop = () => {
    const cardData = [
        {
            id: 1,
            image: "https://i.ibb.co.com/XxvZ2Kq/Logo.png"
        },
        {
            id: 2,

ali-master

import cluster from "node:cluster";
import { Injectable } from "@nestjs/common";
import { cpuCountSync } from "node-cpu-count";

const numCPUs = cpuCountSync();

@Injectable()
export class AppClusterService {
  static register(callback: () => void): void {
    if (cluster.isPrimary) {

ali-master

I find a solution for this, in finder, if the hosts file has a lock on it, use this command to unlock it:

sudo chflags nouchg,noschg /etc/hosts

then it will be editable by root, so you can use sudo nano /etc/hosts.

BTY, you can find hosts file in finder by this command: open /etc.

ali-master

export const convertDate = (date: Date | string) => {
    if (typeof date === "string") {
        const d = new Date(date);
        return d.toISOString().slice(0, 19).replace("T", " ");
    }
    return date.toISOString().slice(0, 19).replace("T", " ");
};

export const getNow = () => {
    return new Date(convertDate(new Date()));

ali-master

// Usage:
// Replace React.lazy(() => import('x'));
// with retryDynamicImport(() => import('x'));

import { ComponentType, lazy } from 'react';

const MAX_RETRY_COUNT = 15;
const RETRY_DELAY_MS = 500;

// Regex to extract the module URL from the import statement

ali-master

import axios from "axios";
import { randomUUID } from 'crypto';

const checkProcessEnv = () => {
  if (
    !process.env.HOOK0_APPLICATION_ID ||
    !process.env.HOOK0_APPLICATION_SECRET
  ) {
    throw new Error('Cannot subscribe to webhooks without Hook0 settings');
  }

ali-master

export type TimeSpanUnit = "ms" | "s" | "m" | "h" | "d" | "w";

export class TimeSpan {
	constructor(value: number, unit: TimeSpanUnit) {
		this.value = value;
		this.unit = unit;
	}

	public value: number;
	public unit: TimeSpanUnit;