01/13/2012. From a lecture by Professor John Ousterhout at Stanford, class CS140
Here's today's thought for the weekend. A little bit of slope makes up for a lot of Y-intercept.
[Laughter]
-- 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%' |
node: Platform built on V8 to build network applications | |
git: Distributed revision control system | |
wget: Internet file retriever | |
yarn: JavaScript package manager | |
python3: Interpreted, interactive, object-oriented programming language | |
coreutils: GNU File, Shell, and Text utilities | |
pkg-config: Manage compile and link flags for libraries | |
chromedriver: Tool for automated testing of webapps across many browsers | |
awscli: Official Amazon AWS command-line interface | |
automake: Tool for generating GNU Standards-compliant Makefiles |
Locate the section for your github remote in the .git/config
file. It looks like this:
[remote "origin"]
fetch = +refs/heads/*:refs/remotes/origin/*
url = git@github.com:joyent/node.git
Now add the line fetch = +refs/pull/*/head:refs/remotes/origin/pr/*
to this section. Obviously, change the github url to match your project's URL. It ends up looking like this:
'use strict'; | |
module.exports = function CustomError(message, extra) { | |
Error.captureStackTrace(this, this.constructor); | |
this.name = this.constructor.name; | |
this.message = message; | |
this.extra = extra; | |
}; | |
require('util').inherits(module.exports, Error); |
I fell in love with CoffeeScript a couple of years ago. Javascript has always seemed something of an interesting curiosity to me and I was happy to see the meteoric rise of Node.js, but coming from a background of Python I really preferred a cleaner syntax.
In any fast moving community it is inevitable that things will change, and so today we see a big shift toward ES6, the new version of Javascript. It incorporates a handful of the nicer features from CoffeeScript and is usable today through tools like Babel. Here are some of my thoughts and issues on moving away from CoffeeScript in favor of ES6.
While reading I suggest keeping open a tab to Babel's learning ES6 page. The examples there are great.
Holy punctuation, Batman! Say goodbye to your whitespace and hello to parenthesis, curly braces, and semicolons again. Even with the advanced ES6 syntax you'll find yourself writing a lot more punctuatio
API | Status Codes |
---|---|
[Twitter][tw] | 200, 304, 400, 401, 403, 404, 406, 410, 420, 422, 429, 500, 502, 503, 504 |
[Stripe][stripe] | 200, 400, 401, 402, 404, 429, 500, 502, 503, 504 |
[Github][gh] | 200, 400, 422, 301, 302, 304, 307, 401, 403 |
[Pagerduty][pd] | 200, 201, 204, 400, 401, 403, 404, 408, 500 |
[NewRelic Plugins][nr] | 200, 400, 403, 404, 405, 413, 500, 502, 503, 503 |
[Etsy][etsy] | 200, 201, 400, 403, 404, 500, 503 |
[Dropbox][db] | 200, 400, 401, 403, 404, 405, 429, 503, 507 |
Use the curl
command line tool from your terminal window to access web pages, resources, and API's. This swiss-army knife of the internet also supports many more protocols and tools.
curl [options] URL
The complete, offical reference page is here.