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How are strings passed in .NET?
...// What gets printed?
}
There are three things you need to know to understand what happens here:
Strings are reference types in C#.
They are also immutable, so any time you do something that looks like you're changing the string, you aren't. A completely new string gets created, the reference is p...
Generating v5 UUID. What is name and namespace?
I've read the man page, but I do not undestand what name and namespace are for.
3 Answers
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RESTful API methods; HEAD & OPTIONS
I'm writing a RESTful API module for an application in PHP, and I'm a bit mixed on the verbs HEAD and OPTIONS .
3 Answer...
Rename specific column(s) in pandas
...' else x for x in df.columns]
Or, construct a mapping using a dictionary and perform the list-comprehension with it's get operation by setting default value as the old name:
col_dict = {'gdp': 'log(gdp)', 'cap': 'cap_mod'} ## key→old name, value→new name
df.columns = [col_dict.get(x, x) fo...
What is the difference between lock and Mutex?
What is the difference between lock and Mutex? Why can't they be used interchangeably?
7 Answers
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Is there YAML syntax for sharing part of a list or map?
...sequences as your first example. This makes sense when you think about it, and your example looks like it probably doesn't need to be sequential anyway. Simply changing your sequence values to mapping keys should do the trick, as in the following (untested) example:
sitelist: &sites
? www.foo...
How can I generate a diff for a single file between two branches in github
... me to do this for all changed files, but that's no good as there are thousands of files in my repo.
5 Answers
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ActiveRecord: size vs count
In Rails, you can find the number of records using both Model.size and Model.count . If you're dealing with more complex queries is there any advantage to using one method over the other? How are they different?
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Differences between ExpandoObject, DynamicObject and dynamic
What are the differences between System.Dynamic.ExpandoObject , System.Dynamic.DynamicObject and dynamic ?
4 Answers
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Simplest way to do a recursive self-join?
...ITH clause. If you need specifics, please create a fiddle on sqlfiddle.com and post the link here.
– Quassnoi
Nov 25 '14 at 22:31
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