Recent questions tagged Dictionary

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dictionary - A python class that acts like dict

I want to write a custom class that behaves like dict - so, I am inheriting from dict. My question, though, ... it from the error message). See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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dictionary - Is there a 'multimap' implementation in Python?

I am new to Python, and I am familiar with implementations of Multimaps in other languages. Does Python have such a data ... ]) # prints: ['c'] See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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dictionary - How can I combine hashes in Perl?

What is the best way to combine both hashes into %hash1? I always know that %hash2 and %hash1 always have unique keys. ... {'4'} = 'yellow'; See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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dictionary - Difference between dict.clear() and assigning {} in Python

In python, is there a difference between calling clear() and assigning {} to a dictionary? If yes, what is it? ... way d = {} #vs this way See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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483 views

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dictionary - Using python map and other functional tools

This is quite n00bish, but I'm trying to learn/understand functional programming in python. The following ... bars internally within maptest? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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829 views

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dictionary - C++ Loop through Map

I want to iterate through each element in the map<string, int> without knowing any of its string-int values or ... I access each element? } } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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412 views

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dictionary - Using Python's max to return two equally large values

I'm using Python's max function to find the largest integer in a dictionary called count, and the corresponding key (not ... a and b, not both. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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964 views

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dictionary - Swagger HashMap property type

Is there any way to define a HashMap or Generic Object type in the models section? I have a REST service that ... its value is the option value. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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677 views

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dictionary - When to use parenthesis in Scala infix notation

When programming in Scala, I do more and more functional stuff. However, when using infix notation it is hard to ... when and why you need it? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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dictionary - How to update map values in Go

I want to build a map with string key and struct value with which I'm able to update struct value in the ... key: D5 Value: UpdatedData for D5 See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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950 views

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dictionary - How to access deeply nested dictionaries in Swift

I have a pretty complex data structure in my app, which I need to manipulate. I am trying to keep track of ... . Any help would be appreciated. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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675 views

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dictionary - How to use dot notation for dict in python?

I'm very new to python and I wish I could do . notation to access values of a dict. Lets say I have ... no key matches' Why is this happening? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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921 views

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dictionary - C++ Thread-Safe Map

Does anyone know where I can find an implimentation that wraps a std::map and makes it thread safe? When I ... and / or boost constructs. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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545 views

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dictionary - Use functional combinators on Scala Tuples?

'map' preserves the number of elements, so using it on a Tuple seems sensible. My attempts so far: scala> ( ... ? Could the library be improved? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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