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How do I create a SHA1 hash in ruby?
...
There's also Digest::SHA1.base64digest 'foo'
– andrewrk
Jan 14 '12 at 1:31
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Mozilla PDF.js：PDF在线预览 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...，尤其是对于低功率设备;
2.如果可能的话，尝试使用JPEG编码的彩色图像或者是RGB色彩的照片;
3.避免使用华丽的成分/效果，如转换/屏蔽- 拼合透明度;
4.避免使用PDF生成器（或者不创造内容）产生无效的PDF输出（如LibreOffice中...
What's the valid way to include an image with no src?
...ogramming.com/2009/03/15/the-tiniest-gif-ever
<img src="data:image/gif;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=" width="0" height="0" alt="" />
Edit based on comment below:
Of course, you must consider your browser support requirements. No support for IE7 or less is notable. http://cani...
Objective-C implicit conversion loses integer precision 'NSUInteger' (aka 'unsigned long') to 'int'
... 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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Python Pandas: Get index of rows which column matches certain value
...] returns the ith row of df. i does not refer to the index label, i is a 0-based index.
In contrast, the attribute index returns actual index labels, not numeric row-indices:
df.index[df['BoolCol'] == True].tolist()
or equivalently,
df.index[df['BoolCol']].tolist()
You can see the difference ...
Java Byte Array to String to Byte Array
...he bytes as raw data (as binary) instead of a string, or perhaps even as a Base64 string, which would only require you to convert it back as a base 256 (binary) value.
– Yanick Rochon
Feb 4 '13 at 17:06
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Assign pandas dataframe column dtypes
... 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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How to save/restore serializable object to/from file?
...an hold in memory, you might want to switch to an object store (object database) instead of a file.
– Tezra
Jun 15 '17 at 17:39
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Is there a constraint that restricts my generic method to numeric types?
...on any Y should be able to be passed to that method as a substitute of its base type.
– Jeroen Vannevel
Mar 17 '14 at 21:58
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Catch All Bugs with BugTrap! - 开源 & Github - 清泛网 - 专注IT技能提升
...developer's computer by e-mail, over HTTP, or through a fast low-level TCP-based network protocol. The BugTrap server automatically manages the error reports repository, and notifies developers about any new errors.
BugTrap stores error descriptions in log and mini-dump files. Mini-dump files may...