If you are using this already, consider changes soon due the discussion around current ESX proposal.
Feel free to keep an eye on udomsay as that will be the implementation reference for consumers.
# If you work with git, you've probably had that nagging sensation of not knowing what branch you are on. Worry no longer! | |
export PS1="\\w:\$(git branch 2>/dev/null | grep '^*' | colrm 1 2)\$ " | |
# This will change your prompt to display not only your working directory but also your current git branch, if you have one. Pretty nifty! | |
# ~/code/web:beta_directory$ git checkout master | |
# Switched to branch "master" | |
# ~/code/web:master$ git checkout beta_directory | |
# Switched to branch "beta_directory" |
If you are using this already, consider changes soon due the discussion around current ESX proposal.
Feel free to keep an eye on udomsay as that will be the implementation reference for consumers.
This article has been given a more permanent home on my blog. Also, since it was first written, the development of the Promises/A+ specification has made the original emphasis on Promises/A seem somewhat outdated.
Promises are a software abstraction that makes working with asynchronous operations much more pleasant. In the most basic definition, your code will move from continuation-passing style:
getTweetsFor("domenic", function (err, results) {
// the rest of your code goes here.
I was poking around trying to figure out all the packages I have access to publish and got curious. So I write this little script to determine the download stats for all the packages I have publish access to.
Feel free to try it yourself. Just change the username passed to getUserDownloadStats
.
By default, the stats are sorted by their average daily downloads (descending). That should give you an idea of the most "popular" package of a given user relative to how long that package has been around.
You can use it with npx
like so:
npm users sorted by the monthly downloads of their modules, for the range May 6, 2018 until Jun 6, 2018.
Metrics are calculated using top-npm-users.
# | User | Downloads |
---|
// http://paulirish.com/2011/requestanimationframe-for-smart-animating/ | |
// http://my.opera.com/emoller/blog/2011/12/20/requestanimationframe-for-smart-er-animating | |
// requestAnimationFrame polyfill by Erik Möller. fixes from Paul Irish and Tino Zijdel | |
// MIT license | |
(function() { | |
var lastTime = 0; | |
var vendors = ['ms', 'moz', 'webkit', 'o']; |
https://gist.github.com/ljharb/58faf1cfcb4e6808f74aae4ef7944cff
While attempting to explain JavaScript's reduce
method on arrays, conceptually, I came up with the following - hopefully it's helpful; happy to tweak it if anyone has suggestions.
JavaScript Arrays have lots of built in methods on their prototype. Some of them mutate - ie, they change the underlying array in-place. Luckily, most of them do not - they instead return an entirely distinct array. Since arrays are conceptually a contiguous list of items, it helps code clarity and maintainability a lot to be able to operate on them in a "functional" way. (I'll also insist on referring to an array as a "list" - although in some languages, List
is a native data type, in JS and this post, I'm referring to the concept. Everywhere I use the word "list" you can assume I'm talking about a JS Array) This means, to perform a single operation on the list as a whole ("atomically"), and to return a new list - thus making it mu
// ---------------------------------------------------------- | |
// A short snippet for detecting versions of IE in JavaScript | |
// without resorting to user-agent sniffing | |
// ---------------------------------------------------------- | |
// If you're not in IE (or IE version is less than 5) then: | |
// ie === undefined | |
// If you're in IE (>=5) then you can determine which version: | |
// ie === 7; // IE7 | |
// Thus, to detect IE: | |
// if (ie) {} |
// Use like this: node --import logger.js yourapp.js | |
import path from 'path'; | |
const { log } = console; | |
[`debug`, `log`, `warn`, `error`, `table`, `dir`].forEach((methodName) => { | |
const originalLoggingMethod = console[methodName]; | |
console[methodName] = (...args) => { | |
const originalPrepareStackTrace = Error.prepareStackTrace; | |
Error.prepareStackTrace = (_, stack) => stack; |