Here are several different ways to test a TCP port without telnet.
BASH (man page)
$ cat < /dev/tcp/127.0.0.1/22
SSH-2.0-OpenSSH_5.3
^C
$ cat < /dev/tcp/127.0.0.1/23
#!/usr/bin/env bash | |
# | |
# Bootstrap script for setting up a new OSX machine | |
# | |
# This should be idempotent so it can be run multiple times. | |
# | |
# Some apps don't have a cask and so still need to be installed by hand. These | |
# include: | |
# | |
# - Twitter (app store) |
Here are several different ways to test a TCP port without telnet.
$ cat < /dev/tcp/127.0.0.1/22
SSH-2.0-OpenSSH_5.3
^C
$ cat < /dev/tcp/127.0.0.1/23
All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.
Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.
elem.offsetLeft
, elem.offsetTop
, elem.offsetWidth
, elem.offsetHeight
, elem.offsetParent
var Promise = require('bluebird'); | |
var funcs = Promise.resolve([500, 100, 400, 200].map((n) => makeWait(n))); | |
funcs | |
.each(iterator) // logs: 500, 100, 400, 200 | |
.then(console.log) // logs: [ [Function], [Function], [Function], [Function] ] | |
funcs | |
.mapSeries(iterator) // logs: 500, 100, 400, 200 |
Lesson 1 - Iterations | |
- BinaryGap - https://codility.com/demo/results/trainingU2FQPQ-7Y4/ | |
Lesson 2 - Arrays | |
- OddOccurrencesInArray - https://codility.com/demo/results/trainingFN5RVT-XQ4/ | |
- CyclicRotation - https://codility.com/demo/results/trainingSH2W5R-RP5/ | |
Lesson 3 - Time Complexity | |
- FrogJmp - https://codility.com/demo/results/training6KKWUD-BXJ/ | |
- PermMissingElem - https://codility.com/demo/results/training58W4YJ-VHA/ |
A complete list of RxJS 5 operators with easy to understand explanations and runnable examples.
'use strict'; | |
var db = require('./db'); | |
var testModel = require('./model'); | |
var testControllers = { | |
// 모델에서 db.single() 함수를 사용한 예제입니다. | |
// 쿼리를 실행하고 커넥션을 반환합니다. | |
test1: function (req, res) { | |
testModel.getTest('test1').then(function (rows) { |
Git for Windows comes bundled with the "Git Bash" terminal which is incredibly handy for unix-like commands on a windows machine. It is missing a few standard linux utilities, but it is easy to add ones that have a windows binary available.
The basic idea is that C:\Program Files\Git\mingw64\
is your /
directory according to Git Bash (note: depending on how you installed it, the directory might be different. from the start menu, right click on the Git Bash icon and open file location. It might be something like C:\Users\name\AppData\Local\Programs\Git
, the mingw64
in this directory is your root. Find it by using pwd -W
).
If you go to that directory, you will find the typical linux root folder structure (bin
, etc
, lib
and so on).
If you are missing a utility, such as wget, track down a binary for windows and copy the files to the corresponding directories. Sometimes the windows binary have funny prefixes, so
<?php | |
$sites = [ | |
'http://www.google.com/', | |
'http://www.facebook.com/', | |
'http://www.youtube.com/', | |
'http://www.yahoo.com/', | |
'http://www.live.com/', | |
'http://www.wikipedia.org/', | |
'http://www.baidu.com/', |