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Install

$ brew install nginx

Setelah install jalankan nginx.
$ sudo nginx

Testing

Test apakah nginx sudah running, buka url http://localhost:8080.

Ganti default port

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Docker Basic Command	Description
docker run hello-world	Download the very small hello-world image and print a “Hello from Docker“ message
docker images	Get List of Docker Images
docker search busybox	Search the online Docker registry for a Image named busybox
docker run -t -i busybox	Create an instance (container) of 'busybox' image interactively
docker run -t -i busybox:latest	Create an instance with 'latest' tag value
docker run -t -i busybox:1.0	Create an instance with '1.0' tag value
docker ps --all	List all containers
docker start ab0e37214358	Relaunch a Container

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13 Noteworthy Points from Google’s JavaScript Style Guide

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Authentication plugin 'caching_sha2_password' cannot be loaded: dlopen(/usr/local/mysql/lib/plugin/caching_sha2_password.so, 2): image not found

ALTER USER 'root' IDENTIFIED WITH mysql_native_password BY 'root';

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UnhandledPromiseRejectionWarning Error Handling

(node:15701) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 1)

Solution:

const checkFirstName = async (firstName) => {

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import React, { useState } from 'react'
const languages = { en: 'en', fr: 'fr' }
const initialTheme = { colour: 'blue', lang: languages.en }
const { Provider, Consumer } = React.createContext(initialTheme)

const App = (): JSX.Element => {
  const [theme, setTheme] = useState(initialTheme)

  const setLanguage = (lang: string): void => {
    setTheme({ ...theme, lang: lang })

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// ($lt, $lte, $gt, $gte, $in, $nin, $ne, $exists, $regex)
// $or, $and, $not, $where
function extractValue(object: any) {
  const filterArray = [];
  for (const key in object) {
    filterArray.push(`${key};${object[key]}`);
  }
  const filterSort = filterArray.sort();
  return filterSort.toString();
}

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import jwt from "jsonwebtoken";

export function tokenService() {
  const SECRET = "secret";
  return new Promise<string>((resolve, reject) => {
    jwt.sign(
      { foo: "bar" },
      SECRET,
      (err: Error, token: string) => {
        if (err) reject(err);

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Technical Documentation Template

First of all, you need to understand you are not writing documentation for you, nor for your current team. You are writing documentation for the future developers that were not there when you first wrote this code. Worst of it, they might think it is bad code for many reasons and won’t understand why you wrote this way.

Taken from: How to write good software technical documentation

Table of contents

• Code documentation
• Function header comments

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#!/bin/bash

sysctl net.core.rmem_default=268435456
sysctl net.core.wmem_default=268435456
sysctl net.core.rmem_max=268435456
sysctl net.core.wmem_max=268435456
sysctl net.core.netdev_max_backlog=100000
sysctl "net.ipv4.tcp_rmem=4096 16384 134217728"
sysctl "net.ipv4.tcp_wmem=4096 16384 134217728"
sysctl "net.ipv4.tcp_mem=786432 1048576 268435456"