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How to count duplicate value in an array in javascript
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the extra if statement after the loop is unnecessary... just use for (var i = 0; i <= array_elements.length; i++) { or <= instead of <.
– EmmaGamma
Feb 9 '15 at 1:58
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How to select rows from a DataFrame based on column values?
...orm the same boolean analysis we did above. This leaves us performing one extra step to accomplish the same task.
mask = df['A'] == 'foo'
pos = np.flatnonzero(mask)
df.iloc[pos]
A B C D
0 foo one 0 0
2 foo two 2 4
4 foo two 4 8
6 foo one 6 12
7 foo three ...
How to make the python interpreter correctly handle non-ASCII characters in string operations?
I have a string that looks like so:
11 Answers
11
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Command line progress bar in Java
...he thing to do is to print your progress bar, for example, by printing the string
"|======== |\r"
On the next tick of the progress bar, overwrite the same line with a longer bar. (because we are using \r, we stay on the same line) For example:
"|========= |\r"
What you have to re...
sqlalchemy: how to join several tables by one query?
...atever):
class User(Base):
__tablename__ = 'users'
email = Column(String, primary_key=True)
name = Column(String)
class Document(Base):
__tablename__ = "documents"
name = Column(String, primary_key=True)
author_email = Column(String, ForeignKey("users.email"))
author = ...
error: Unable to find vcvarsall.bat
...haracters, then you need to check that you path variable does not have any extraneous characters like extra quotations or stray characters. The batch file is not going to be able to update your session path if it can't make sense of it in the first place.
If that went well, you should get one of the...
What's “wrong” with C++ wchar_t and wstrings? What are some alternatives to wide characters?
...e in the C++ community(particularly ##c++ on freenode) resent the use of wstrings and wchar_t , and their use in the windows api. What is exactly "wrong" with wchar_t and wstring , and if I want to support internationalization, what are some alternatives to wide characters?
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Is there a generic constructor with parameter constraint in C#?
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Agreed...we should have new(float, double), new(string), etc.
– SliverNinja - MSFT
Feb 1 '12 at 17:47
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Getting “Skipping JaCoCo execution due to missing execution data file” upon executing JaCoCo
...rtifactId>
<configuration>
<argLine>@{argLine} -your -extra -arguments</argLine>
</configuration>
</plugin>
Note the @{argLine} that's added to -your -extra -arguments.
Thanks Slava Semushin for noticing the change and reporting in the comment.
jacoco-ma...
App Launcher 应用启动器扩展：用于启动其他应用程序的强大工具，支持独立...
...键值的列表
getResultValue 方法将与指定键关联的值作为 String 返回
getResultObject 方法将与指定键关联的值作为 object 返回，即与被启动的应用程序存储的数据类型相同
关于Intent
Android使用 Intent 对象向系统发送...