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How to change value of process.env.PORT in node.js?
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For just one run (from the unix shell prompt):
$ PORT=1234 node app.js
More permanently:
$ export PORT=1234
$ node app.js
In Windows:
set PORT=1234
In Windows PowerShell:
$env:PORT = 1234
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How can I truncate a datetime in SQL Server?
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What's the _ underscore representative of in Swift References?
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Both answers were correct but I want to clarify a little bit more.
_ is used to modify external parameter name behavior for methods.
In Local and External Parameter Names for Methods section of the documentation, it says:
Swift gives the first parameter name in a method a local p...
In Visual Studio C++, what are the memory allocation representations?
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This link has more information:
http://en.wikipedia.org/wiki/Magic_number_(programming)
* 0xABABABAB : Used by Microsoft's HeapAlloc() to mark "no man's land" guard bytes after allocated heap memory
* 0xABADCAFE : A startup to this valu...
If REST applications are supposed to be stateless, how do you manage sessions?
...heir session state and the servers can service many orders of magnitude or more clients in a stateless fashion.
Even for a service that you think will only need in the 10's of thousands of concurrent users, you still should make your service stateless. Tens of thousands is still tens of thousands an...
Convert Object to JSON string
...er method window.JSON.parse(). If that is not available, it uses eval() or more exactly new Function() to create a Javascript object.
The opposite of JSON.parse() is JSON.stringify() which serializes a Javascript object into a string. jQuery does not have functionality of its own for that, you have...
Difference between Convert.ToString() and .ToString()
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Also, semi-related, see this answer for more detail: stackoverflow.com/questions/496096/…
– JYelton
May 13 '10 at 15:50
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Show diff between commits
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git diff oldCommit..newCommit
git diff k73ud..dj374
and (1 space, not more):
git diff oldCommit newCommit
git diff k73ud dj374
And if you need to get only files names (e.g. to copy hotfix them manually):
git diff k73ud dj374 --name-only
And you can get changes applied to another branch:
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Count occurrences of a char in a string using Bash
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Why are only final variables accessible in anonymous class?
...objects referred to by the parameters are seen.
If you're interested in a more detailed comparison between Java and C# closures, I have an article which goes into it further. I wanted to focus on the Java side in this answer :)
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