fengshuo fengshuo

## sidekiq_monitoring
stats = Sidekiq::Stats.new

stats.queues

stats.enqueued

stats.processed

stats.failed

## Trie.js
/* Class representing a Trie data structure */
export default class Trie {

  /**
   * Creates a Trie
   * @return {Object} Trie
   */
  constructor() {
    this.words = 0;
    this.prefixes = 0;

## postgres_queries_and_commands.sql
-- show running queries (pre 9.2)
SELECT procpid, age(clock_timestamp(), query_start), usename, current_query
FROM pg_stat_activity
WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%'
ORDER BY query_start desc;

-- show running queries (9.2)
SELECT pid, age(clock_timestamp(), query_start), usename, query
FROM pg_stat_activity
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%'

## nokogiri_install
# `ERROR:  Error installing nokogiri:
# ERROR: Failed to build gem native extension.
#
#   current directory: /usr/local/var/rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/nokogiri-1.7.0/ext/nokogiri
# /usr/local/var/rbenv/versions/2.3.1/bin/ruby -r ./siteconf20170103-68488-r71c9j.rb extconf.rb --with-xml=/usr/local/Cellar/libxml2/ --use-system-libraries
# checking if the C compiler accepts ... yes
# checking if the C compiler accepts -Wno-error=unused-command-line-argument-hard-error-in-future... no
# Building nokogiri using system libraries.
# ERROR: cannot discover where libxml2 is located on your system. please make sure `pkg-config` is installed.
# *** extconf.rb failed ***

## git-tag-delete-local-and-remote.sh
# delete local tag '12345'
git tag -d 12345
# delete remote tag '12345' (eg, GitHub version too)
git push origin :refs/tags/12345
# alternative approach
git push --delete origin tagName
git tag -d tagName

## gist:b0fe2721cbc0f6cae2ac380c4596cb8f
For those, who don't know how to make this work: create a file, e.g. git_branch_name_to_clipboard.sh in your user directory with following content:

`git branch | grep "*" | awk '{ print $2 }' | pbcopy`

or use this to remove the new line when you paste:

`git branch | grep "*" | awk '{ print $2 }' | tr -d '\n' | pbcopy`

Then in `.gitconfig file`, which is located in your user folder, add these lines under [alias]:

## index.html
<!DOCTYPE html>
<meta charset="utf-8">
<style>
rect{
  fill: white;
}
circle {
  stroke: #000;
  stroke-opacity: .5;
}

## index.html
<!DOCTYPE html>
<meta charset="utf-8">
<style>
rect{
  fill: white;
}
circle {
  stroke: #000;
  stroke-opacity: .5;
}

## 0-react-hello-world.md

      
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                fengshuo
                / 0-react-hello-world.md
            
            
              Created
              March 14, 2016 13:29
                — forked from danawoodman/0-react-hello-world.md
            
              
                React Hello World Examples
              
          
    React "Hello World" Examples

Below are a small collection of React examples to get anyone started using React. They progress from simpler to more complex/full featured.
Going Further


React documentation
Flux architecture using Reflux (see this blog post for more)
React routing with react-router
My other Gist on using React + Reflux + WebSockets


## cat-colors.json
{
	"colorList": {
		"c1"  : ["#000000", "#000011"],
		"c2"  : ["#000011", "#000022"],
		"c3"  : ["#000022", "#000033"],
		"c4"  : ["#000033", "#000044"],
		"c7"  : ["#000044", "#000055"],
		"c8"  : ["#000055", "#000066"],
		"c9"  : ["#000066", "#000077"],
		"c10" : ["#000077", "#000088"]
	stats = Sidekiq::Stats.new

	stats.queues

	stats.enqueued

	stats.processed

	stats.failed
	/* Class representing a Trie data structure */
	export default class Trie {

	/**
	* Creates a Trie
	* @return {Object} Trie
	*/
	constructor() {
	this.words = 0;
	this.prefixes = 0;
	-- show running queries (pre 9.2)
	SELECT procpid, age(clock_timestamp(), query_start), usename, current_query
	FROM pg_stat_activity
	WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%'
	ORDER BY query_start desc;

	-- show running queries (9.2)
	SELECT pid, age(clock_timestamp(), query_start), usename, query
	FROM pg_stat_activity
	WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%'
	# `ERROR: Error installing nokogiri:
	# ERROR: Failed to build gem native extension.
	#
	# current directory: /usr/local/var/rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/nokogiri-1.7.0/ext/nokogiri
	# /usr/local/var/rbenv/versions/2.3.1/bin/ruby -r ./siteconf20170103-68488-r71c9j.rb extconf.rb --with-xml=/usr/local/Cellar/libxml2/ --use-system-libraries
	# checking if the C compiler accepts ... yes
	# checking if the C compiler accepts -Wno-error=unused-command-line-argument-hard-error-in-future... no
	# Building nokogiri using system libraries.
	# ERROR: cannot discover where libxml2 is located on your system. please make sure `pkg-config` is installed.
	# * extconf.rb failed *
	For those, who don't know how to make this work: create a file, e.g. git_branch_name_to_clipboard.sh in your user directory with following content:

	`git branch \| grep "*" \| awk '{ print $2 }' \| pbcopy`

	or use this to remove the new line when you paste:

	`git branch \| grep "*" \| awk '{ print $2 }' \| tr -d '\n' \| pbcopy`

	Then in `.gitconfig file`, which is located in your user folder, add these lines under [alias]:
	<!DOCTYPE html>
	<meta charset="utf-8">
	<style>
	rect{
	fill: white;
	}
	circle {
	stroke: #000;
	stroke-opacity: .5;
	}
	{
	"colorList": {
	"c1" : ["#000000", "#000011"],
	"c2" : ["#000011", "#000022"],
	"c3" : ["#000022", "#000033"],
	"c4" : ["#000033", "#000044"],
	"c7" : ["#000044", "#000055"],
	"c8" : ["#000055", "#000066"],
	"c9" : ["#000066", "#000077"],
	"c10" : ["#000077", "#000088"]