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Bill Gross超火爆演讲: 创业成功唯一最关键因素 - 资讯 - 清泛网 - 专注C/C++及内核技术
...正能影响它们成功的关键性因素，而且，我想尝试用一种系统化的方式研究，以避免我一些直觉性的东西，以及因为过去经历我曾操盘和看过那么多公司后，可能带来的一些误导。
而我想搞清楚这个问题，是因为我 12 岁就开始...
How to go to a specific file in Chrome Developer Tools?
...
While in the sources tab use CTRL+O (⌘+O for Mac) to search scripts, stylesheets and snippets by filename.
(use CTRL+SHIFT+O to filter/navigate to a JavaScript function/CSS rule when viewing a file)
[Chrome Devtools Cheatsheet]
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How do I commit case-sensitive only filename changes in Git?
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Using MacOS here (case-insensitive FS) and -f worked! Thanks for the tip
– caesarsol
Dec 15 '16 at 18:08
54
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使用App Inventor扩展实现多点触控：Scale Detector · App Inventor 2 中文网
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请记住，扩展机制仍然不稳定并且正在开发中。 随着系统的发展，你在步骤 (2) 和 (3) 中构建的任何 aia 文件可能需要重新构建。
内容
多点触控演示应用
实现ScaleDetector扩展
App Inventor 没有内置多点触控功能。添加多点...
ERROR: Error installing capybara-webkit:
...et install qt4-dev-tools libqt4-dev libqt4-core libqt4-gui
If you are on Mac
brew install qt
and then
gem install capybara-webkit -v '0.11.0'
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Using print statements only to debug
... answered Jul 5 '11 at 8:00
macmac
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Xcode “Build and Archive” from command line
...ath "myApp.ipa" -exportProvisioningProfile "My App Provisioning profile"
Mac .app file:
xcodebuild -exportArchive -exportFormat app -archivePath "$ARCHIVE_PATH" -exportPath "myApp.app" -exportSigningIdentity "Developer ID Application: My Software Company"
In both commands the -exportProvisionin...
Rails 4: List of available datatypes
...vantage of these:
:hstore
:json
:jsonb
:array
:cidr_address
:ip_address
:mac_address
They are stored as strings if you run your app with a not-PostgreSQL database.
Edit, 2016-Sep-19:
There's a lot more postgres specific datatypes in Rails 4 and even more in Rails 5.
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Programmatically find the number of cores on a machine
Is there a way to determine how many cores a machine has from C/C++ in a platform-independent way? If no such thing exists, what about determining it per-platform (Windows/*nix/Mac)?
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How do I get bash completion to work with aliases?
...e completition working on all git commands.
– Ondrej Machulda
Apr 15 '13 at 12:03
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