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Wrap a delegate in an IEqualityComparer
...e hashing behind the scenes (e.g., LINQ's GroupBy, Distinct, Except, Join, etc) and the MS contract regarding hashing is broken in this implementation. Here's MS's documentation excerpt: "Implementations are required to ensure that if the Equals method returns true for two objects x and y, then the ...
ios app maximum memory budget
...ow many applications running in background, what exact memory you're using etc.
Just avoid the instant memory splashes (e.g. you're using 40 Mb of RAM, and then allocating 80 Mb's more for some short computation). In this case iOS would kill your application immediately.
You should also consider ...
What does = +_ mean in JavaScript
... a number.
_ is only a variable name (not an operator), it could be a, foo etc.
Example:
+"1"
cast "1" to pure number 1.
var _ = "1";
var r = +_;
r is now 1, not "1".
Moreover, according to the MDN page on Arithmetic Operators:
The unary plus operator precedes its operand and evaluates ...
Making a property deserialize but not serialize with json.net
...
This results in correct deserialization using default settings/resolvers/etc., but the property is stripped from serialized output.
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Using @property versus getters and setters
...e plenty of ways to do this in Python (getattr, setattr, __getattribute__, etc..., but a very concise and clean one is:
def set_email(self, value):
if '@' not in value:
raise Exception("This doesn't look like an email address.")
self._email = value
def get_email(self):
return s...
How can I get a user's media from Instagram without authenticating as a user?
...cent Instagram media on a sidebar. I'm trying to use the Instagram API to fetch the media.
20 Answers
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Is there a way to auto expand objects in Chrome Dev Tools?
...the properties (hasOwn) in the middle of 50 prototype methods, properties etc...
– Kev
Oct 21 '15 at 20:25
this gives...
What are “first class” objects?
...r sections of code(method arguments), ability to store in a data structure etc. If we can do the same with an entity which is not normally considered as a object, like functions in the case of java script, such entities are considered to be first class objects.
First class essentially here means, n...
Loop through files in a directory using PowerShell
...r was install something and use it. You could have suggested install Ruby, etc.
– SteveC
Dec 13 '19 at 14:02
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How do you read CSS rule values with JavaScript?
...lar rule, so I can't just pull them out by style name (like .style.width etc.)
16 Answers
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