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App Inventor 2 SQLite 拓展：超流行兼容主流SQL语法的迷你本地数据库引擎...
...打开，则导出前必须先调用 关闭数据库 方法，否则导出失败、报错。
导出的文件是一个完整的 SQLite 数据库。
如果导入成功，则返回 真，否则返回 假。
ImportDatabase(fileName)
导入一个 SQLite 数据库文件，完全替换当前已关闭...
How to enable cURL in PHP / XAMPP
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For Ubuntu (and probably all Debian-Based) Linux Distributions:
sudo apt-get install php5-curl
sudo /etc/init.d/apache2 restart
You might have seen PHP Fatal error: Call to undefined function curl_init() before.
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How do I truncate a .NET string?
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641
There isn't a Truncate() method on string, unfortunately. You have to write this kind of logic...
How do I set GIT_SSL_NO_VERIFY for specific repos only?
...n specific http section for your git server and specify which certificate (Base64 encoded) to trust:
~/.gitconfig
[http "https://repo.your-server.com"]
# windows path use double back slashes
# sslCaInfo = C:\\Users\\<user>\\repo.your-server.com.cer
# unix path to certificate (Base64 encoded...
Finding the Eclipse Version Number
...t will print out the full version of currently running Eclipse (or any RCP-based application).
String product = System.getProperty("eclipse.product");
IExtensionRegistry registry = Platform.getExtensionRegistry();
IExtensionPoint point = registry.getExtensionPoint("org.eclipse.core.runtime.products...
Removing projects in Sublime Text 2 and 3
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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VS2010 and IE10 Attaching the Script debugger to process iexplore.exe failed
So I am using Win7 x64 with VS2010 and have installed the IE10 Win7 Preview and ReSharper 6.1.
12 Answers
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Why does typeof NaN return 'number'?
...est not to quantify NaN and just think of it as an oddity in our knowledge base.
– Dave
Dec 10 '11 at 3:13
1
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How to find where a method is defined at runtime?
... will return an array with filename and line number.
E.g for ActiveRecord::Base#validates this returns:
ActiveRecord::Base.method(:validates).source_location
# => ["/Users/laas/.rvm/gems/ruby-1.9.2-p0@arveaurik/gems/activemodel-3.2.2/lib/active_model/validations/validates.rb", 81]
For classes ...
Python: Convert timedelta to int in a dataframe
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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