| /* This has been added to CSS Protips https://github.com/AllThingsSmitty/css-protips */ | |
| /* The type font size in a responsive layout should be able to adjust with each viewport. | |
| You can calculate the font size based on the viewport height and width using :root */ | |
| :root { | |
| font-size: calc(1vw + 1vh + .5vmin); | |
| } | |
| /* Now you can utilize the root em unit based on the value calculated by :root */ | |
| body { |
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
I had a lot of issues trying to get continuation-local-storage (cls) working on a hapi.js app with pm2 in cluster_mode. Long story short, my mistake was wrapping cls around my server.start() when I should have been running it in a request handler. Here is the code you should use to get all this working:
var cls = require('continuation-local-storage');
var ns = cls.createNamespace('mySession');
var Hapi = require('hapi');
var server = new Hapi.Server();
server.connection({ port: 80 });
| #!/usr/bin/env bash | |
| # Colours picked from https://robinpowered.com/blog/best-practice-system-for-organizing-and-tagging-github-issues/ | |
| ### | |
| # Label definitions | |
| ### | |
| declare -A LABELS | |
| # Platform |
| #!/bin/bash | |
| # | |
| # The reason of creating this script is that Endpoint Security VPN installs it's own application firewall kext cpfw.kext | |
| # which prevents for example PPTP connections from this computer, which is not appropriate if you need subj connection just | |
| # from time to time | |
| # | |
| # Usage: ./checkpoint.sh | |
| # | |
| # The script checks if Enpoint Security VPN is running. If it is, then it shuts it down, if it is not, it fires it up. | |
| # Or, make an Automator action and paste the script. |
| // Copyright 2016 Jeremie Miserez <jeremie@miserez.org> | |
| // | |
| // MIT License | |
| // Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: | |
| // The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. | |
| // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF O |
(by @andrestaltz)
If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.
| ### | |
| # Node.js app Docker file | |
| # | |
| # Some basic build instructions: | |
| # ``` | |
| # # you should delete node_modules b/c you don't want that copied during 'ADD' | |
| # docker build -t thom-nic/node-bootstrap . | |
| # # run a shell in the container to inspect the environment (as root): | |
| # docker run --rm -itu root thom-nic/node-bootstrap /bin/bash | |
| # ``` |
The prep-script.sh will setup the latest Node and install the latest perf version on your Linux box.
When you want to generate the flame graph, run the following (folder locations taken from install script):
sudo sysctl kernel.kptr_restrict=0
# May also have to do the following:
# (additional reading http://unix.stackexchange.com/questions/14227/do-i-need-root-admin-permissions-to-run-userspace-perf-tool-perf-events-ar )
sudo sysctl kernel.perf_event_paranoid=0
This simple script will take a picture of a whiteboard and use parts of the ImageMagick library with sane defaults to clean it up tremendously.
The script is here:
#!/bin/bash
convert "$1" -morphology Convolve DoG:15,100,0 -negate -normalize -blur 0x1 -channel RBG -level 60%,91%,0.1 "$2"