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How to avoid “too many parameters” problem in API design?
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One style embraced in the frameworks is usually like grouping related parameters into related classes (but yet again problematic with mutability):
var request = new HttpWebRequest(a, b);
var service = new RestService(request, c, d, e);
var client = new RestClient(ser...
What is the difference between i++ and ++i?
... Neither statement is correct. Consider your first statement. i++ actually means "save the value, increment it, store it in i, then tell me the original saved value". That is, the telling happens after the incrementing, not before as you have stated it. Consider the second statement. i++ actual...
Fastest way to replace NAs in a large data.table
....805 12.301 134.985
system.time(a_andrie = f_andrie(dt1))
Error: cannot allocate vector of size 305.2 Mb
Timing stopped at: 14.541 7.764 68.285
system.time(f_dowle(dt1))
user system elapsed
7.452 4.144 19.590 # EDIT has faster than this
identical(a_gdata, dt1)
[1] TRUE
Note th...
Choice between vector::resize() and vector::reserve()
I am pre-allocating some memory to my a vector member variable. Below code is minimal part
4 Answers
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Who is “us” and who is “them” according to Git?
...The reason is that Git uses the same merge-engine for rebase, and it's actually cherry-picking your stuff into the upstream branch. us = into, them = from.
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Final arguments in interface methods - what's the point?
...or matching signatures of overridden methods, and it has no effect on the caller, only within the body of an implementation. Also, as noted by Robin in a comment, the final modifier on a method parameter has no effect on the generated byte code. (This is not true for other uses of final.)
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Best practice for nested fragments in Android 4.0, 4.1 (
...previous fragment transaction has finished. And of course it was only naturally supported in 4.2 or the support library.
Nesting without ChildManager - Solution
Solution, Sure! I have been doing this for a long time now, (since the ViewPager was announced).
See below; This is a Fragment that defe...
How to supply value to an annotation from a Constant java
... of the form TypeName . Identifier that refer to constant variables.
Actually in java there is no way to protect items in an array. At runtime someone can always do FieldValues.FIELD1[0]="value3", therefore the array cannot be really constant if we look deeper.
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How to use Python's pip to download and keep the zipped files for a package?
...the pip command to download a package (and its dependencies), but keep all of the zipped files that get downloaded (say, django-socialregistration.tar.gz) - is there a way to do that?
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Get environment variable value in Dockerfile
... Very nice solution! On a Mac you can get envsubst as part of brew install gettext. But because of possible conflicts with the BSD build system it is "keg-only" and no symlnks are made. However, it is safe to do ln -s /usr/local/Cellar/gettext/*/bin/envsubst /usr/local/bin/ to add that one comma...