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std::unique_lock or std::lock_guard?
...released when lock goes out of scope
};
To clarify a question by chmike, by default std::lock_guard and std::unique_lock are the same.
So in the above case, you could replace std::lock_guard with std::unique_lock. However, std::unique_lock might have a tad more overhead.
Note that thes...
grep a file, but show several surrounding lines?
...bably related to how command-line arguments / options are typically parsed by POSIX programs. The option specifier is a single character (such as -A, -B or -C). Usually, the option specifier is followed by a value (-o a.out to specify output file in GCC), but it can also function as a simple switch ...
Convert InputStream to byte array in Java
How do I read an entire InputStream into a byte array?
34 Answers
34
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Node.js: printing to console without a trailing newline?
...t it's not a newline character itself. I was getting a literal ` followed by an n`, when I wanted to output a real newline character.
– Paul
Apr 29 '15 at 22:30
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Let JSON object accept bytes or let urlopen output strings
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HTTP sends bytes. If the resource in question is text, the character encoding is normally specified, either by the Content-Type HTTP header or by another mechanism (an RFC, HTML meta http-equiv,...).
urllib should know how to encode th...
How to set value of input text using jQuery
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Using jQuery, we can use the following code:
Select by input name:
$('input[name="textboxname"]').val('some value')
Select by input class:
$('input[type=text].textboxclass').val('some value')
Select by input id:
$('#textboxid').val('some value')
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What is a Shim?
...ere. Shims typically come about when the behaviour of an API changes, thereby causing compatibility issues for older applications that still rely on the older functionality. In these cases, the older API can still be supported by a thin compatibility layer on top of the newer code. Shims can also be...
What does enumerable mean?
...nsole.log(key); // "key"
A property is identified as enumerable or not by its own [[Enumerable]] attribute. You can view this as part of the property's descriptor:
var descriptor = Object.getOwnPropertyDescriptor({ bar: 1 }, 'bar');
console.log(descriptor.enumerable); // true
console.log(descr...
Java 8 Stream and operation on arrays
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You can turn an array into a stream by using Arrays.stream():
int[] ns = new int[] {1,2,3,4,5};
Arrays.stream(ns);
Once you've got your stream, you can use any of the methods described in the documentation, like sum() or whatever. You can map or filter like ...
Why does C++ need a separate header file?
...ift through header files and remember how they work together, supplemented by your header comments. B.Went one person un taking care of defining all the object structure and some else is taking care of implementation it keeps things organized. Over all I think it makes complex code more readable.
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