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How to merge dictionaries of dictionaries?
...numbers of entries a recursive function is easiest:
def merge(a, b, path=None):
"merges b into a"
if path is None: path = []
for key in b:
if key in a:
if isinstance(a[key], dict) and isinstance(b[key], dict):
merge(a[key], b[key], path + [str(key)])
...
@Resource vs @Autowired
...
In spring pre-3.0 it doesn't matter which one.
In spring 3.0 there's support for the standard (JSR-330) annotation @javax.inject.Inject - use it, with a combination of @Qualifier. Note that spring now also supports the @javax.inject.Qualifier meta-annotation:
@Qual...
What is the best way to compare floats for almost-equality in Python?
... Not to diminish the value of this answer (I think it's a good one), it's worth noting that the documentation also says: "Modulo error checking, etc, the function will return the result of..." In other words, the isclose function (above) is not a complete implementation.
...
Chrome says “Resource interpreted as script but transferred with MIME type text/plain.”, what gives?
...ude application/x-javascript, as the MIME media types listed above are the ones registered in the standards tree by now (so there is no need, and there should be no want, to use experimental ones anymore). Cf. RFC 4329, "Scripting Media Types" (2005 CE) and my Test Case: Support for Scripting Media...
How can I convert comma separated string into a List
...
Here is one way of doing it:
List<int> TagIds = tags.Split(',').Select(int.Parse).ToList();
share
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improve this answer
...
Python try-else
...if execution falls off the bottom of the try - if there was no exception. Honestly, I've never found a need.
However, Handling Exceptions notes:
The use of the else clause is better
than adding additional code to the try
clause because it avoids accidentally
catching an exception that was...
Merging without whitespace conflicts
... This ignores whitespace at line end, and considers all other sequences of one or more whitespace characters to be equivalent.
--ignore-all-space
Ignore whitespace when comparing lines.
This ignores differences even if one line has whitespace where the other line has none.
ks1322 adds i...
How can I use pointers in Java?
...eard that Java programs can be created with pointers and that this can be done by the few who are experts in java. Is it true?
...
Picking a random element from a set
...ts, i.e., structures that have a .get() function.
– coneyhelixlake
Feb 19 '15 at 22:27
4
@bourbak...
Is there a way to get a collection of all the Models in your Rails app?
...ook at the comments and other answers. There are smarter answers than this one! Or try to improve this one as community wiki.
Models do not register themselves to a master object, so no, Rails does not have the list of models.
But you could still look in the content of the models directory of your...