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What are the differences between Rust's `String` and `str`?
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String is the dynamic heap string type, like Vec: use it when you need to own or modify your string data.
str is an immutable1 sequence of UTF-8 bytes of dynamic length somewhere in memory. Since the size is unknown, one can only handle it behind a pointer. This means that str m...
Should a function have only one return statement?
Are there good reasons why it's a better practice to have only one return statement in a function?
50 Answers
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What is the difference between a 'closure' and a 'lambda'?
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A lambda is just an anonymous function - a function defined with no name. In some languages, such as Scheme, they are equivalent to named functions. In fact, the function definition is re-written as binding a lambda to a variable internally. In other languages, like Python, there are s...
What is the difference between URI, URL and URN? [duplicate]
What's the difference between an URI, URL and URN? I have read a lot of sites (even Wikipedia) but I don't understand it.
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new keyword in method signature
... a method like the example below. The datatype has been changed for simplicity's sake.
8 Answers
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“register” keyword in C?
What does the register keyword do in C language? I have read that it is used for optimizing but is not clearly defined in any standard. Is it still relevant and if so, when would you use it?
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What does a colon following a C++ constructor name do? [duplicate]
What does the colon operator (":") do in this constructor? Is it equivalent to MyClass(m_classID = -1, m_userdata = 0); ?
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Good or bad practice? Initializing objects in getter
I have a strange habit it seems... according to my co-worker at least. We've been working on a small project together. The way I wrote the classes is (simplified example):
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Do HttpClient and HttpClientHandler have to be disposed between requests?
...dispose of HttpClient.
Many people who are intimately involved in the way it works have stated this.
See Darrel Miller's blog post and a related SO post: HttpClient crawling results in memory leak for reference.
I'd also strongly suggest that you read the HttpClient chapter from Designing Evolvab...
Effects of the extern keyword on C functions
...when defining extern int f(); in a single file forces you to implement it outside of the file's scope. However I found out that both:
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