大约有 3,200 项符合查询结果（耗时：0.0277秒） [XML]
JSON formatter in C#?
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+1 for excellent craftsmanship. As much as I like it, for (shared) production code I'd probably split it up and convert to a foreach loop for the sake of readability/debuggability.
– 3dGrabber
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Functional style of Java 8's Optional.ifPresent and if-not-Present?
...tion with the value, otherwise performs the given empty-based action.
See excellent Optional in Java 8 cheat sheet.
It provides all answers for most use cases.
Short summary below
ifPresent() - do something when Optional is set
opt.ifPresent(x -> print(x));
opt.ifPresent(this::print);
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Determine the data types of a data frame's columns
...more information about class, typeof, and the middle child, mode, see this excellent SO thread: A comprehensive survey of the types of things in R. 'mode' and 'class' and 'typeof' are insufficient.
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Is it possible only to declare a variable without assigning any value in Python?
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Excellent answer
– Ben
Mar 15 '18 at 21:14
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Round a double to 2 decimal places [duplicate]
...t.println(new BigDecimal("1.03").subtract(new BigDecimal("0.41")));
Some excellent further reading on the topic:
Item 48: "Avoid float and double if exact answers are required" in Effective Java (2nd ed) by Joshua Bloch
What Every Programmer Should Know About Floating-Point Arithmetic
If you...
snprintf and Visual Studio 2010
... the _s functions do use template magic to infer buffer sizes, and that is excellent.
– Bruce Dawson
Nov 22 '14 at 0:23
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HTML Form: Select-Option vs Datalist-Option
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Excellent answer!! Could you please explain your second bullet? What do you mean by "option groups to organize the display"? Thanks.
– Govind Rai
Sep 26 '16 at 6:34
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Java Singleton and Synchronization
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Excellent answer, though I didn't get some part of it. Can you elaborate "Further, the class loader guarantees that all static initialization is complete before you get access to the class - that's what gives you thread-safet...
CSS to stop text wrapping under image
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This is excellent for displaying code blocks that might have to contend with images or floating sidebars nearby.
– AlexMA
Apr 2 '14 at 2:24
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HTML character decoding in Objective-C / Cocoa Touch
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Dude, excellent functions. Your stringByDecodingXMLEntities method made my day! Thanks!
– Brian Moeskau
Jun 8 '10 at 6:41
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