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What is the purpose of base 64 encoding and why it used in HTTP Basic Authentication?
...nges a character code into another. In this case, usual bytes of data can now be easily represented and transported using HTTP.
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How can I expose more than 1 port with Docker?
... create --name `container name` --expose 7000 --expose 7001 `image name`
Now, when you start this container using the docker start command, the configured ports above will be exposed.
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How to use NSCache
...Object: myWidget forKey: @"Important Widget"];
}
// myWidget should exist now either way. Use it here.
if (myWidget) {
[myWidget runOrWhatever];
}
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Get hostname of current request in node.js Express
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request.headers.host is now deprecated, instead you can use request.headers.hostname
– Syam Danda
Dec 8 '16 at 9:45
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What does {0} mean when initializing an object?
...cted non-static data members, no base classes, and no virtual functions.
Now, using {0} to initialize an aggregate like this is basically a trick to 0 the entire thing. This is because when using aggregate initialization you don't have to specify all the members and the spec requires that all uns...
What's wrong with using == to compare floats in Java?
...ll), the epsilon is no longer appropriate. (Using epsilon is fine if you know your float values are all relatively reasonable, though.)
– P.T.
Dec 13 '11 at 2:05
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R cannot be resolved - Android error
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I thinh I have the same problem, is there any way to know witch one of the layouts?
– Sergey Kucher
Oct 13 '12 at 8:57
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How does Chrome's “Request Desktop Site” option work?
...work even if you originally typed in the URL for the mobile site. I don't know how its implemented because the name of mobile versions is by no means standardized, but there is something smarter going on than a simple UA change.
– Andrew G
Feb 3 '15 at 19:23
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Converting Long to Date in Java returns 1970
...nt of whole seconds since the same epoch reference of 1970-01-01T00:00Z.
Know Your Data
People use various precisions in tracking time as a number since an epoch. So when you obtain some numbers to be interpreted as a count since an epoch, you must determine:
What epoch?Many epochs dates have been...
Number of rows affected by an UPDATE in PL/SQL
...e, if my table T has one column c1 which contains "1" as value for all and now I update all rows for that column to "2", how will partitioning by null help?
– nanosoft
Mar 20 '17 at 9:02
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