This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.
To capture the video (filesize: 19MB), using the free "QuickTime Player" application:
All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.
Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.
elem.offsetLeft
, elem.offsetTop
, elem.offsetWidth
, elem.offsetHeight
, elem.offsetParent
A timeline of the last four years of detecting good old window.localStorage
.
October 2009: 5059daa
download and install Solr from http://lucene.apache.org/solr/.
you can access Solr admin from your browser: http://localhost:8983/solr/
use the port number used in installation.
Here's an example of how to debug Mocha v4 if it hangs.
Ensure you're using a Node.js 8 or newer (or any version with async_hooks support).
If you run your test, you'll notice it hangs:
$ mocha test.js
First of all, please note that token expiration and revoking are two different things.
A JWT token that never expires is dangerous if the token is stolen then someone can always access the user's data.
Quoted from JWT RFC:
# You don't need Fog in Ruby or some other library to upload to S3 -- shell works perfectly fine | |
# This is how I upload my new Sol Trader builds (http://soltrader.net) | |
# Based on a modified script from here: http://tmont.com/blargh/2014/1/uploading-to-s3-in-bash | |
S3KEY="my aws key" | |
S3SECRET="my aws secret" # pass these in | |
function putS3 | |
{ | |
path=$1 |
import { Component } from "React"; | |
export var Enhance = ComposedComponent => class extends Component { | |
constructor() { | |
this.state = { data: null }; | |
} | |
componentDidMount() { | |
this.setState({ data: 'Hello' }); | |
} | |
render() { |
#!/usr/bin/env stack | |
-- stack --resolver lts-7.9 --install-ghc script --package QuickCheck --package either --package parsec | |
module Roman where | |
import Control.Applicative hiding ((<|>)) | |
import Data.Either.Combinators | |
import Text.Parsec.Prim | |
import Text.Parsec.Combinator | |
import Text.Parsec.Error |