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Python `if x is not None` or `if not x is None`?
...ce difference, as they compile to the same bytecode:
Python 2.6.2 (r262:71600, Apr 15 2009, 07:20:39)
>>> import dis
>>> def f(x):
... return x is not None
...
>>> dis.dis(f)
2 0 LOAD_FAST 0 (x)
3 LOAD_CONST 0 (Non...
Nginx缓存解决方案：SRCache - 更多技术 - 清泛网 - 专注C/C++及内核技术
...t = "11213"},
}
phoenix["rule"] = {
default = {
expire = 600,
min_uses = 0,
max_errors = 0,
query = {
["debug"] = false,
},
},
{
regex = "^/foo/bar",
query = {
["page"] = function(v)
...
npm throws error without sudo
...
coolaj86
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answered Jun 25 '14 at 9:05
Yves M.Yves M...
How to rebase local branch with remote master
...
Paul DraperPaul Draper
60.6k3535 gold badges161161 silver badges235235 bronze badges
...
What regular expression will match valid international phone numbers?
...78|977|976|975|974|973|972|971|970|
969|968|967|966|965|964|963|962|961|960|899|
898|897|896|895|894|893|892|891|890|889|888|
887|886|885|884|883|882|881|880|879|878|877|
876|875|874|873|872|871|870|859|858|857|856|
855|854|853|852|851|850|839|838|837|836|835|
834|833|832|831|830|809|808...
How can I generate an ObjectId with mongoose?
...:
const bson = require('bson');
new bson.ObjectId(); // 5cabe64dcf0d4447fa60f5e2
Note: There is also an npm project named bson-objectid being even lighter
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How do you read a file into a list in Python? [duplicate]
...
60
f = open("file.txt")
lines = f.readlines()
Look over here. readlines() returns a list contain...
decorators in the python standard lib (@deprecated specifically)
...on (use another function).
some_old_function(5, 3)
deprecated_example.py:60: DeprecationWarning: Call to deprecated function or method some_old_method (use another method).
SomeClass().some_old_method(8, 9)
deprecated_example.py:61: DeprecationWarning: Call to deprecated class SomeOldClass (use ...
Undocumented NSURLErrorDomain error codes (-1001, -1003 and -1004) using StoreKit
...hance that your server is not able to respond within some time limit? Like 60 seconds or 4 minutes?
Is there a possibility that your device is switching networks (WiFi, 3G, VPN)?
Could someone (client vs. server) be waiting for authentication?
Sorry, no ideas how to fix. Just debugging this, tryin...
private[this] vs private
...
60
I don't think it matters too much, since any changes will only touch one class either way. So t...