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.
elem.offsetLeft
, elem.offsetTop
, elem.offsetWidth
, elem.offsetHeight
, elem.offsetParent
elem.clientLeft
, elem.clientTop
, elem.clientWidth
, elem.clientHeight
elem.getClientRects()
, elem.getBoundingClientRect()
""" | |
jQuery templates use constructs like: | |
{{if condition}} print something{{/if}} | |
This, of course, completely screws up Django templates, | |
because Django thinks {{ and }} mean something. | |
Wrap {% verbatim %} and {% endverbatim %} around those | |
blocks of jQuery templates and this will try its best |
def queryset_generator(queryset, chunksize=1000): | |
""" | |
Iterate over a Django Queryset ordered by the primary key | |
This method loads a maximum of chunksize (default: 1000) rows in its | |
memory at the same time while django normally would load all rows in its | |
memory. Using the iterator() method only causes it to not preload all the | |
classes. | |
Note that the implementation of the generator does not support ordered query sets. |
var stack_holder = new Error; | |
function stackPrepare(e,stacks) { | |
var stack = stacks | |
for (var p in stack[0]) { | |
stack[p] = stack[0][p] | |
} | |
stack.find = function(fn) { | |
for (var i=stack.length;i--;) { | |
if (stack[i].getFunction() === fn) break; |
#!/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 | |
# |
#!/bin/bash | |
### Rewrite history (all commits in all branches) without the files that match the pattern | |
DELETE_PAT="$1" | |
git filter-branch --tree-filter "rm -rf $1" --prune-empty --tag-name-filter cat -- --all | |
### filter-branch saves the original history to refs/original | |
### because we aim to reclaim space, we need to remove it and then gc the refs | |
git for-each-ref --format="%(refname)" refs/original/| xargs -n 1 git update-ref -d | |
git reflog expire --expire=now --all |
zmqd.c = 45k rps |
;;; All Kinds of Destructuring ;;; | |
(let [foo 1] foo) | |
; => 1 | |
(let [[foo bar] [1 2 3]] [foo bar]) | |
; => [1 2] | |
(let [[foo bar & baz] [1 2 3]] [foo bar baz]) | |
; => [1 2 (3)] |
/* | |
.d dP"Yb dP"Yb 88""Yb .d .d dP"Yb 88""Yb .d oP"Yb. 888888 88 88 88 88b 88 dP""b8 .dP"Y8 | |
.d88 dP Yb dP Yb 88__dP .d88 .d88 dP Yb 88__dP .d88 "' dP' 88 88 88 88 88Yb88 dP `" `Ybo." | |
88 Yb dP Yb dP 88"Yb 88 88 Yb dP 88"Yb 88 dP' 88 888888 88 88 Y88 Yb "88 o.`Y8b | |
88 YbodP YbodP 88 Yb 88 88 YbodP 88 Yb 88 .d8888 88 88 88 88 88 Y8 YboodP 8bodP' | |
88 88 888888 db 88""Yb 88b 88 888888 8888b. 888888 88""Yb dP"Yb 8b d8 |