大约有 30,000 项符合查询结果（耗时：0.0548秒） [XML]
How to check whether a file or directory exists?
... uses panic for an actual "exception" like object. You can "catch" with a call to recover. Explicitly returning an err as a second return value is an extremely common, idiomatic Go technique. See: golang.org/doc/effective_go.html#errors
– Chris Pfohl
Aug 13 ...
Install specific git commit with pip
...equire cloning the entire repository. GitHub creates those bundles automatically.
hash:
$ pip install git+git://github.com/aladagemre/django-notification.git@2927346f4c513a217ac8ad076e494dd1adbf70e1
branch-name
With git
$ pip install git+git://github.com/aladagemre/django-notification.git@cool...
How does lombok work?
... even if it is being run via JavaC that way there is only one processor to call.
– Archimedes Trajano
Dec 2 '13 at 14:40
...
Type hinting a collection of a specified type
...there is an experimental type-checker (kind of like pylint, but for types) called mypy that already uses this standard, and doesn't require any new syntax.
http://mypy-lang.org/
share
|
improve th...
Plot a bar using matplotlib using a dictionary
...tic issues with plt.xticks, could you please tell us how to move them vertically from horizontally.
– moldovean
Mar 11 '14 at 14:58
2
...
How to define different dependencies for different product flavors
...
How do you handle not calling the Ad classes?
– Jared Burrows
Jun 13 '15 at 19:55
|
sho...
How to reference generic classes and methods in xml documentation
...nless it completely resolves.
If the method in the OP were in a namespace called Test, the completely resolved link to the method shown would be:
<see cref="M:Test.FancyClass`1.FancyMethod``1(`0)"/>
As you may be able to work out, there should only be one backtick before the number of class...
INSERT … ON DUPLICATE KEY (do nothing)
...
Yes, use INSERT ... ON DUPLICATE KEY UPDATE id=id (it won't trigger row update even though id is assigned to itself).
If you don't care about errors (conversion errors, foreign key errors) and autoincrement field exhaustion (it's incremented even if the row is not ins...
How to draw a rounded Rectangle on HTML Canvas?
...o do the same thing and created a method to do it.
// Now you can just call
var ctx = document.getElementById("rounded-rect").getContext("2d");
// Draw using default border radius,
// stroke it but no fill (function's default values)
roundRect(ctx, 5, 5, 50, 50);
// To change the color on the r...
Memory footprint of Haskell data types
...ector would make heap walks difficult.
...so it wouldn't be practical to call this often!
Also see How to find out GHC's memory representations of data types? and How can I determine size of a type in Haskell?.
share
...