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Add all files to a commit except a single file?
I have a bunch of files in a changeset, but I want to specifically ignore a single modified file. Looks like this after git status :
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How to check whether a pandas DataFrame is empty?
...[8]: len(df1.columns)
Out[8]: 0
In [9]: len(df2.columns)
Out[9]: 2
Critically, while the second dataframe df2 contains no data, it is not completely empty because it returns the amount of empty columns that persist.
Why it matters
Let's add a new column to these dataframes to understand the implic...
Multiple “order by” in LINQ
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How on earth have I gone all this time without knowing about ThenBy?! (Edit: looks like it was introduced in .NET 4.0, which explains how it slipped past me unnoticed.)
– Jordan Gray
Nov 21 '13 at 15:05
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How do I flush the PRINT buffer in TSQL?
...show up right away...',0,1) WITH NOWAIT
You shouldn't completely replace all your prints with raiserror. If you have a loop or large cursor somewhere just do it once or twice per iteration or even just every several iterations.
Also: I first learned about RAISERROR at this link, which I now cons...
Is unsigned integer subtraction defined behavior?
... not restricted to overflow of the upper bound of the type, and applies equally to values too low to be represented.
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What do commas and spaces in multiple classes mean in CSS?
..._12 .grid_6,
.container_16 .grid_8 {
width: 460px;
}
That says "make all .grid_6's within .container_12's and all .grid_8's within .container_16's 460 pixels wide." So both of the following will render the same:
<div class="container_12">
<div class="grid_6">460px Wide</div&g...
Difference between java.io.PrintWriter and java.io.BufferedWriter?
...e writing to the file.
There is no such concept as a "PrintReader"; the closest you will get is probably java.util.Scanner.
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Compile error: “g++: error trying to exec 'cc1plus': execvp: No such file or directory”
...convention interacts badly with case-insensitive file systems (Windows, macOS, for example). When you had COLARR.C, the system was probably looking at it as a C++ source file; as colarr.c, it is a C source file.
– Jonathan Leffler
Dec 9 '16 at 18:13
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Using print statements only to debug
...ith before, using formulae never seen before and dealing with huge files. All this made me write a lot of print statements to verify if it's all going right and identify the points of failure. But, generally, outputting so much information is not a good practice. How do I use the print statements o...
Pros and cons of AppSettings vs applicationSettings (.NET app.config / Web.config)
... you cannot safely assume your number that you wanted to configure there really is a number - someone could put a string into that setting..... you just access it as ConfigurationManager["(key)"] and then it's up to you to know what you're dealing with.
Also, over time, the <appSettings> can...