大约有 47,000 项符合查询结果（耗时：0.0217秒） [XML]
Chrome sendrequest error: TypeError: Converting circular structure to JSON
...
@FelixKling Unfortunately I couldn't get that to work (might have been doing something wrong) I ended up using this: github.com/isaacs/json-stringify-safe
– Doug Molineux
Nov 13 '15 at 20:22
...
How to sort two lists (which reference each other) in the exact same way
...at's easily remedied, if it matters:
>>> list1, list2 = (list(t) for t in zip(*sorted(zip(list1, list2))))
>>> list1
[1, 1, 2, 3, 4]
>>> list2
['one', 'one2', 'two', 'three', 'four']
It's worth noting that the above may sacrifice speed for terseness; the in-place versio...
Why is using 'eval' a bad practice?
...', 'Artist', 'Album', 'Genre', 'Location')
def __init__(self):
for att in self.attsToStore:
setattr(self, att.lower(), None)
def setDetail(self, key, val):
if key in self.attsToStore:
setattr(self, key.lower(), val)
EDIT:
There are some cases where ...
Compare object instances for equality by their attributes
...sh__:
class MyClass:
...
def __hash__(self):
# necessary for instances to behave sanely in dicts and sets.
return hash((self.foo, self.bar))
A general solution, like the idea of looping through __dict__ and comparing values, is not advisable - it can never be truly genera...
What is the “__v” field in Mongoose
...
@ExplosionPills for future reference: no. The version key is only incremented after operations that could cause a conflict, modifying array positions. Other updates won't increment it. The original release post explains it in detail: aaronhe...
What does enumerate() mean?
What does for row_number, row in enumerate(cursor): do in Python?
5 Answers
5
...
What is the iPad user agent?
...he accepted answer above isn't it anymore. You can't check the user agent for 'iPhone', has to be 'iPad'. I think jleedev's link above is closer to the real deal: Mozilla/5.0 (iPad; U; CPU OS 3_2 like Mac OS X; en-us) AppleWebKit/531.21.10 (KHTML, like Gecko) Version/4.0.4 Mobile/7B334b Safari/53...
Can't find the PostgreSQL client library (libpq)
I'm trying to install PostgreSQL for Rails on Mac OS X 10.6. First I tried the MacPorts install but that didn't go well so I did the one-click DMG install. That seemed to work.
...
How do I pass extra arguments to a Python decorator?
...decorator(func):
print("Decorating function {}, with parameter {}".format(func.__name__, param))
return function_wrapper(func) # assume we defined a wrapper somewhere
return actual_decorator
The outer function will be given any arguments you pass explicitly, and should return ...
Regex lookahead, lookbehind and atomic groups
...these things in my regex body but I haven't got a clue what I can use them for.
Does somebody have examples so I can try to understand how they work?
...