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What are the differences between Rust's `String` and `str`?

...t x: &[u8] = &[b'a', b'b', b'c']; let stack_str: &str = str::from_utf8(x).unwrap(); In summary, use String if you need owned string data (like passing strings to other threads, or building them at runtime), and use &str if you only need a view of a string. This is identical to t...
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NERDTree reload new files

...rectory or R to refresh root directory. You can consider adding new files from nerdTree itself by pressing m, then a to add a new file (or directory by adding a trailing slash). This way you don't need to refresh nerdTree to see the new added file. ...
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Converting String To Float in C#

... Doesn't this change the datatype from float to double? OP wanted float. – Nell Martinez Oct 24 '17 at 14:50 add a comment ...
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Difference between “managed” and “unmanaged”

... terms 'managed' and 'unmanaged' were invented to distinguish machine code from IR. So, they only really have meaning in the context of .NET. The linux kernel also compiles to unmanaged code, but that's not really relevant to the discussion, is it? – kurige Aug...
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Html table tr inside td

... You cannot put tr inside td. You can see the allowed content from MDN web docs documentation about td. The relevant information is in the permitted content section. Another way to achieve this is by using colspan and rowspan. Check this fiddle. HTML: <table width="100%"> <...
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Is the ternary operator faster than an “if” condition in Java [duplicate]

...gonna be about the same binary!) so your goal should be efficiency for You-From-The-Future (humans are always the bottleneck in software). Josh Bloch's "Performance Anxiety" talk on Parleys.com The answer citing 9 lines versus one can be misleading: less lines of code does not always equal better....
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Creating a constant Dictionary in C#

...lt;,> class is immutable (but multi-valued on the rhs); you can do this from a Dictionary<,> quite easily: Dictionary<string, int> ids = new Dictionary<string, int> { {"abc",1}, {"def",2}, {"ghi",3} }; ILookup<string, int> lookup = ids.ToLookup(x => x...
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msbuild.exe staying open, locking files

... This also works when running a build from the command line, e.g. a batch script, build server, etc. – Dave E Feb 1 '16 at 11:41 add a com...
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How to do a newline in output

... I guess one interesting and useful thing to take away from this is that puts outputs a string and an "automatic" trailing line break; that's handier than appending it in code. – Carl Smotricz Jan 13 '10 at 21:12 ...
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Groovy executing shell commands

... @mholm815 how can we approve required scripts from pipeline itself? – Ronak Patel Oct 10 '19 at 21:40 add a comment  |  ...