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When should I use a struct rather than a class in C#?
When should you use struct and not class in C#? My conceptual model is that structs are used in times when the item is merely a collection of value types . A way to logically hold them all together into a cohesive whole.
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When should I use Arrow functions in ECMAScript 6?
... for much else.
Where an object constructor is needed one should consider converting the function to a class as shown above. The syntax works with anonymous functions/classes as well.
Readability of arrow functions
The probably best argument for sticking to regular functions - scope safety be da...
SharedPreferences.onSharedPreferenceChangeListener not being called consistently
...eView. And that was because I listened to the Android Studio telling me to convert the listener to a local variable.
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Add Variables to Tuple
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Another tactic not yet mentioned is using appending to a list, and then converting the list to a tuple at the end:
mylist = []
for x in range(5):
mylist.append(x)
mytuple = tuple(mylist)
print mytuple
returns
(0, 1, 2, 3, 4)
I sometimes use this when I have to pass a tuple as a function...
How to initialize a dict with keys from a list and empty value in Python?
...Moreover, defaultdict is a subclass of dict, so there's usually no need to convert back to a regular dictionary.
For workflows where you require controls on permissible keys, you can use dict.fromkeys as per the accepted answer:
d = dict.fromkeys([1, 2, 3, 4])
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Create the perfect JPA entity [closed]
I've been working with JPA (implementation Hibernate) for some time now and each time I need to create entities I find myself struggling with issues as AccessType, immutable properties, equals/hashCode, ... .
So I decided to try and find out the general best practice for each issue and write this ...
Change URL parameters
...ryString.parse(location.search);
// set the `row` property
q.rows = 10;
// convert the object to a query string
// and overwrite the existing query string
location.search = queryString.stringify(q);
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Start a git commit message with a hashmark (#)
... smart enough to recognize '#' as the comment char in custom templates and convert it if the final comment char is different.
It thinks '#' lines in custom templates as part of the commit message. So don't use this with custom templates.
The list of candidate characters for "auto" are:
# ; @ ! $ % ...
C# DateTime to “YYYYMMDDHHMMSS” format
I want to convert a C# DateTime to "YYYYMMDDHHMMSS" format. But I don't find a built in method to get this format? Any comments?
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Remove characters except digits from string using Python?
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convert str to list to make sure it works on both py2 and py3: ''.join(filter(lambda x: x.isdigit(), list("dasdasd2313dsa")))
– Luiz C.
Feb 9 '17 at 18:25
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