| #!/usr/bin/env python2 | |
| # lrdcq | |
| # usage python2 unwxapkg.py filename | |
| import sys, os | |
| import struct | |
| class WxapkgFile(object): | |
| nameLen = 0 |
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
2015-01-29 Unofficial Relay FAQ
Compilation of questions and answers about Relay from React.js Conf.
Disclaimer: I work on Relay at Facebook. Relay is a complex system on which we're iterating aggressively. I'll do my best here to provide accurate, useful answers, but the details are subject to change. I may also be wrong. Feedback and additional questions are welcome.
Relay is a new framework from Facebook that provides data-fetching functionality for React applications. It was announced at React.js Conf (January 2015).
| <!DOCTYPE html> <!-- 使用 HTML5 doctype，不区分大小写 --> | |
| <html lang="zh-cmn-Hans"> <!-- 更加标准的 lang 属性写法 http://zhi.hu/XyIa --> | |
| <head> | |
| <!-- 声明文档使用的字符编码 --> | |
| <meta charset='utf-8'> | |
| <!-- 优先使用 IE 最新版本和 Chrome --> | |
| <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"/> | |
| <!-- 页面描述 --> | |
| <meta name="description" content="不超过150个字符"/> | |
| <!-- 页面关键词 --> |
| DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE | |
| Copyright (C) 2014 ADDY OSMANI <addyosmani.com> | |
| Everyone is permitted to copy and distribute verbatim or modified | |
| copies of this license document, and changing it is allowed as long | |
| as the name is changed. | |
| DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE | |
| TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION |
| var a = []; | |
| a[Math.pow(2, 32) - 2] = "max index"; // highest non-expando indexed property | |
| console.log(a.length === Math.pow(2, 32) - 1); // true | |
| try { | |
| a.push("whoa", "EVEN MOAR WHOA"); | |
| } catch (e) { | |
| console.log(e instanceof RangeError); // true | |
| } |
| /* See http://mrdanadams.com/2012/pixel-ems-css-conversion-sass-mixin/ */ | |
| /* Default font size in pixels if not overridden. */ | |
| $baseFontSize: 16; | |
| /* Convert PX units to EMs. | |
| Ex: margin-right: pem(16); | |
| */ | |
| @function pem($pxval, $base: $baseFontSize) { | |
| @return #{$pxval / $base}em; |
| # 30 minutes Lisp in Ruby | |
| # Hong Minhee <http://dahlia.kr/> | |
| # | |
| # This Lisp implementation does not provide a s-expression reader. | |
| # Instead, it uses Ruby syntax like following code: | |
| # | |
| # [:def, :factorial, | |
| # [:lambda, [:n], | |
| # [:if, [:"=", :n, 1], | |
| # 1, |
