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How to filter array in subdocument with MongoDB [duplicate]
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How can I use modulo operator (%) in JavaScript? [duplicate]
...nder after integer division. Lots of languages have it. For example:
10 % 3 // = 1 ; because 3 * 3 gets you 9, and 10 - 9 is 1.
Apparently it is not the same as the modulo operator entirely.
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Sorting a set of values [closed]
...:
>>> s = set(['0.000000000', '0.009518000', '10.277200999', '0.030810999', '0.018384000', '4.918560000'])
>>> sorted(s)
['0.000000000', '0.009518000', '0.018384000', '0.030810999', '10.277200999', '4.918560000']
Note that sorted is giving you a list, not a set. That's because...
【解决】VNC:No configured security type is supported by 3.3 viewer - ...
【解决】VNC:No configured security type is supported by 3.3 viewerno-configured-security-type-is-supported-by-3.3-vnc-viewer远端机器安装了RealVNC的服务端后，客户端机器连接报错：No configured security type is supported by 3 3 viewer。解决方法：1、远端机器RealVNC...
Combine two or more columns in a dataframe into a new column with a new name
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132
Use paste.
df$x <- paste(df$n,df$s)
df
# n s b x
# 1 2 aa TRUE 2 aa
# 2 3 bb ...
Why do people use __(double underscore) so much in C++
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answered Oct 22 '08 at 3:45
macculltmaccullt
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Evaluating string “3*(4+2)” yield int 18 [duplicate]
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arularul
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How do you specify a different port number in SQL Management Studio?
...am trying to connect to a Microsoft SQL 2005 server which is not on port 1433. How do I indicate a different port number when connecting to the server using SQL Management Studio?
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Multiple Updates in MySQL
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Using your example:
INSERT INTO table (id,Col1,Col2) VALUES (1,1,1),(2,2,3),(3,9,3),(4,10,12)
ON DUPLICATE KEY UPDATE Col1=VALUES(Col1),Col2=VALUES(Col2);
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Most common way of writing a HTML table with vertical headers?
...tain an equal number of columns (TD). Your header has 1 while the body has 3. You should use the colspan attribute to fix that.
Reference: "The THEAD, TFOOT, and TBODY sections must contain the same number of columns." - Last paragraph of section 11.2.3.
With that being said, the first option is t...