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Is there a short cut for going back to the beginning of a file by vi editor?
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edited Mar 13 at 12:39
ROOT
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answered Jul 29 '14 at 9:53
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OS X Terminal Colors [closed]
...oloring = \[\e[0m\]
I always add a slightly modified color-scheme in the root's .bash_profile to make the username red, so I always see clearly if I'm logged in as root (handy to avoid mistakes if I have many terminal windows open).
In /root/.bash_profile:
PS1='\[\e[0;31m\]\u\[\e[0m\]@\[\e[0;32m...
How to find a deleted file in the project commit history?
...ension, for that matter):
Prelim.: Avoid confusion by stepping to the git root
A nontrivial project may have multiple directories with similar or identical names.
> cd <project-root>
Find the full path
git log --diff-filter=D --summary | grep delete | grep MyFile
delete mode 100...
What is Virtual DOM?
...des in the Virtual DOM.
ReactElements can be rendered into HTML DOM
var root = React.createElement('div');
ReactDOM.render(root, document.getElementById('example'));
JSX compiles HTML tags into ReactElements
var root = <div/>;
ReactDOM.render(root, document.getElementById('example'));
R...
Redirecting to a relative URL in JavaScript
... I found using window.location.href = '../' redirected to the root of the site and not "one level up" as expected. When the current page is "www.example.com/customers/list" I needed to use './'. I guess this is because "list" is not considered as a directory level.
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地图组件（高德地图） · App Inventor 2 中文网
...他位置，例如在屏幕外添加 标记，则可以使用“将地图重置为初始边界”按钮将 地图 重新置于起始位置的中心。
属性
自定义URL
支持XYZ格式的地图URL。XYZ格式是一种瓦片地图服务，将地图分成无数个小...
创业者只需要一种素质：成为某个领域的意见领袖 - 资讯 - 清泛网 - 专注C/C...
...传播
说了这么多推广的重要，那么作为普通创业者应该如何去做？我总不能像老罗一样包下一个剧场去做一个发布会吧。
普通人有普通人的方法，那就是一定要成为“意见领袖”，先看看百度百科上对意见领袖是这么定义的...
How can building a heap be O(n) time complexity?
...n. In particular, this implies that the largest item in the heap is at the root. Sifting down and sifting up are essentially the same operation in opposite directions: move an offending node until it satisfies the heap property:
siftDown swaps a node that is too small with its largest child (thereb...
CMake not able to find OpenSSL library
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fixed it on macOS using
brew install openssl
cmake -DOPENSSL_ROOT_DIR=/usr/local/opt/openssl -DOPENSSL_LIBRARIES=/usr/local/opt/openssl/lib
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Is there a way to get a collection of all the Models in your Rails app?
...ntent of the models directory of your application...
Dir.foreach("#{RAILS_ROOT}/app/models") do |model_path|
# ...
end
EDIT: Another (wild) idea would be to use Ruby reflection to search for every classes that extends ActiveRecord::Base. Don't know how you can list all the classes though...
ED...