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How to merge a list of lists with same type of items to a single list of items?
...(which is an IEnumerable of TResults) to an IEnumerable of TResults is the identity function (x => x). This is really just a special case where you don't need the extra step of turning each TSource into a list, because it's already a list.
– Sean
May 8 '15 a...
Boolean vs tinyint(1) for boolean values in MySQL
...esn't answer the question. While it's true that tinyint(1) is functionally identical to bool, the OP asked what is best to use. The answer by @dj_segfault does a proper job explaining why bool should be preferred over tinyint(1) when storing a boolean value.
– Kyle Morgan
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How to send cookies in a post request with the Python Requests library?
... Is this code supposed to place a cookie in my browser? I tried it and it didn't work for me.
– Chris Nielsen
Aug 8 '17 at 20:47
17
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What is the difference between “Form Controls” and “ActiveX Control” in Excel 2010?
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Google is full of information on this. As Hans Passant said, Form controls are built in to Excel whereas ActiveX controls are loaded separately.
Generally you'll use Forms controls, they're simpler. ActiveX controls allow for more flexible design and should be used when the job j...
Collection that allows only unique items in .NET?
...ooking for. From MSDN (emphasis added):
The HashSet<T> class provides high-performance set operations. A set is a collection that contains no duplicate elements, and whose elements are in no particular order.
Note that the HashSet<T>.Add(T item) method returns a bool -- true if the...
What's the difference between `1L` and `1`?
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled...
curl_exec() always returns false
...ween two development environments with self-assigned certificates.
With valid certificates there is no need to set VERIFYHOST and VERIFYPEER to false because the curl_exec($ch) method will work and return the response you expect.
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What's the difference between nohup and ampersand
...l will terminate the sub-command with the hangup signal (kill -SIGHUP <pid>). This can be prevented using nohup, as it catches the signal and ignores it so that it never reaches the actual application.
In case you're using bash, you can use the command shopt | grep hupon to find out whether
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How to Use Order By for Multiple Columns in Laravel 4?
...ay('name'=>'desc', 'email'=>'asc'))
– JoshuaDavid
Oct 7 '14 at 4:24
10
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How is Generic Covariance & Contra-variance Implemented in C# 4.0?
I didn't attend PDC 2008, but I heard some news that C# 4.0 is announced to support Generic covariance and contra-variance. That is, List<string> can be assigned to List<object> . How could that be?
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