Steven styfle

Render 1	Render 2	State Preserved?
`<>...</>`	`<>{[...]}</>`	yes (in any level)
`<><>...</></>`	`<>...</>`	no
`[...]`	`[[...]]`	no
`[<>...</>]`*	`[...]`	no
`[<>...</>]`*	`<>...</>`	no
`[<>...</>]`*	`<>[...]</>`	no
`[<>...</>]`*	`[[...]]`	yes
`[<>...>]`*	`<><>...>>`	yes

Regular Colors

Value	Color
\e[0;30m	Black
\e[0;31m	Red
\e[0;32m	Green
\e[0;33m	Yellow
\e[0;34m	Blue
\e[0;35m	Purple

Safest way to clean up boot partition - Ubuntu 14.04LTS-x64, Ubuntu 16.04LTS-x64

Reference

Case I: if /boot is not 100% full and apt is working

1. Check the current kernel version

$ uname -r

Common Options

-#, --progress-bar Make curl display a simple progress bar instead of the more informational standard meter.

-b, --cookie <name=data> Supply cookie with request. If no =, then specifies the cookie file to use (see -c).

-c, --cookie-jar <file name> File to save response cookies to.

How do you POST a JSON file with curl??

You can post a json file with curl like so:

curl -X POST -H "Content-Type: application/json" -d @FILENAME DESTINATION

so for example:

Elasticsearch: updating the mappings and settings of an existing index

Note: This was written using elasticsearch 0.9.

Elasticsearch will automatically create an index (with basic settings and mappings) for you if you post a first document:

$ curl -X POST 'http://localhost:9200/thegame/weapons/1' -d \
'{
  "_id": 1,

Javascript `log` Function

Every time I start a new project, I want to pull in a log function that allows the same functionality as the console.log, including the full functionality of the Console API.

There are a lot of ways to do this, but many are lacking. A common problem with wrapper functions is that the line number that shows up next to the log is the line number of the log function itself, not where log was invoked. There are also times where the arguments get logged in a way that isn't quite the same as the native function.

This is an attempt to once and for all document the function that I pull in to new projects. There are two different options:

The full version: Inspired by the plugin in HTML5 Boilerplate. Use this if you are writing an application and want to create a window.log function. Additionally,

	# Compiled source #
	###################
	*.com
	*.class
	*.dll
	*.exe
	*.o
	*.so

	# Packages #

	var crypto = require('crypto')
	, fs = require('fs')

	// Algorithm depends on availability of OpenSSL on platform
	// Another algorithms: 'sha1', 'md5', 'sha256', 'sha512' ...
	var algorithm = 'sha1'
	, shasum = crypto.createHash(algorithm)

	// Updating shasum with file content
	var filename = __dirname + "/anything.txt"

	function getFnName(fn) {
	fn = Object(fn)
	var F = typeof fn == 'function'
	var N = fn.name
	var S = F && ((N && ['', N]) \|\| fn.toString().match(/function ([^\(]+)/))
	return (!F && 'not a function') \|\| (S && S[1] \|\| 'anonymous');
	}

	console.log(getFnName(String)); // 'String'
	console.log(getFnName(function test(){})); // 'test'