This shows the execution order given JavaScript's Call Stack, Event Loop, and any asynchronous APIs provided in the JS execution environment (in this example; Web APIs in a Browser environment)
Given the code
# lazyload nvm | |
# all props goes to http://broken-by.me/lazy-load-nvm/ | |
# grabbed from reddit @ https://www.reddit.com/r/node/comments/4tg5jg/lazy_load_nvm_for_faster_shell_start/ | |
lazynvm() { | |
unset -f nvm node npm npx | |
export NVM_DIR=~/.nvm | |
[ -s "$NVM_DIR/nvm.sh" ] && . "$NVM_DIR/nvm.sh" # This loads nvm | |
if [ -f "$NVM_DIR/bash_completion" ]; then | |
[ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion" # This loads nvm bash_completion |
// Takes a credit card string value and returns true on valid number | |
function valid_credit_card(value) { | |
// Accept only digits, dashes or spaces | |
if (/[^0-9-\s]+/.test(value)) return false; | |
// The Luhn Algorithm. It's so pretty. | |
let nCheck = 0, bEven = false; | |
value = value.replace(/\D/g, ""); | |
for (var n = value.length - 1; n >= 0; n--) { |
I recently had several days of extremely frustrating experiences with service workers. Here are a few things I've since learned which would have made my life much easier but which isn't particularly obvious from most of the blog posts and videos I've seen.
I'll add to this list over time – suggested additions welcome in the comments or via twitter.com/rich_harris.
Chrome 51 has some pretty wild behaviour related to console.log
in service workers. Canary doesn't, and it has a load of really good service worker related stuff in devtools.
#!/usr/bin/env sh | |
## | |
# This is script with usefull tips taken from: | |
# https://github.com/mathiasbynens/dotfiles/blob/master/.osx | |
# | |
# install it: | |
# curl -sL https://raw.github.com/gist/2108403/hack.sh | sh | |
# |
An introduction to curl
using GitHub's API.
Makes a basic GET request to the specifed URI
curl https://api.github.com/users/caspyin
/* | |
I've wrapped Makoto Matsumoto and Takuji Nishimura's code in a namespace | |
so it's better encapsulated. Now you can have multiple random number generators | |
and they won't stomp all over eachother's state. | |
If you want to use this as a substitute for Math.random(), use the random() | |
method like so: | |
var m = new MersenneTwister(); |
/* | |
* Updated to use the function-based method described in http://www.phpied.com/social-button-bffs/ | |
* Better handling of scripts without supplied ids. | |
* | |
* N.B. Be sure to include Google Analytics's _gaq and Facebook's fbAsyncInit prior to this function. | |
*/ | |
(function(doc, script) { | |
var js, | |
fjs = doc.getElementsByTagName(script)[0], |
Install instructions for 10.2: | |
http://download.oracle.com/docs/cd/B19306_01/relnotes.102/b15666/toc.htm | |
http://download.oracle.com/docs/cd/B19306_01/install.102/b15667/toc.htm | |
[Required files] | |
10201_database_linux_x86_64.cpio.gz | |
10201_companion_linux_x86_64.cpio.gz | |
p6810189_10204_Linux-x86-64.zip |