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Why are exclamation marks used in Ruby methods?

... convention, the names of procedures that store values into previously allocated locations (see section 3.4) usually end in ``!''. Such procedures are called mutation procedures. By convention, the value returned by a mutation procedure is unspecified. ...
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How to do a Jquery Callback after form submit?

...mit(function() { $.ajax({ type: "POST", url: "form_handler.php", data: $(this).serialize(), success: function() { // callback code here } }) }) }) </script> share ...
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C++ mark as deprecated

...d]] attribute (see section 7.6.5 [dcl.attr.deprecated]). The attribute-token deprecated can be used to mark names and entities whose use is still allowed, but is discouraged for some reason. For example, the following function foo is deprecated: [[deprecated]] void foo(int); It is possible ...
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Best way to store JSON in an HTML attribute?

...then how do I write it back in using jQuery in the same way that it was in PHP? – BadHorsie Sep 6 '11 at 16:01 ...
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Are Exceptions in C++ really slow

...ndle complex data structures, are exception throwing, and dynamic memory allocation. Happily in C++ one can often avoid both in time-critical code. Unfortunately There Ain’t No Such Thing As A Free Lunch, even if the default efficiency of C++ comes pretty close. :-) For the efficiency gained ...
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手把手教你用Strace诊断问题 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...CPU 排序。 在本例中大家很容易发现 CPU 主要是被若干个 PHP 进程占用了,同时 PHP 进程占用的比较多的内存,不过系统内存尚有结余,SWAP 也不严重,这并不是问题主因。 不过在 CPU 列表中能看到 CPU 主要消耗在内核态「sy」,...
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What's the most efficient way to erase duplicates and sort a vector?

...explained in my answer, the implementation build a node (including dynamic allocation) for each element from the input sequence, which is wasteful for every value that ends up being a duplicate. There is no way the optimizer could know it could skip that. – alexk7 ...
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Android studio using > 100% CPU at all times - no background processes appear to be running

...NS Increase these figures accordingly. Xmx specifies the maximum memory allocation pool for a Java Virtual Machine (JVM). Xms specifies the initial memory allocation pool. i.e Your JVM will be started with Xms amount of memory and will be able to use a maximum of Xmx amount of memory. ...
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difference between variables inside and outside of __init__()

...s if you don't create them in __init__(). – too much php Oct 8 '09 at 11:43 3 @too much php: All ...
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Are there strongly-typed collections in Objective-C?

...natomic) T prop; @end Use: FooClass<NSString *> *foo = [[FooClass alloc] init]; NSArray<FooClass<NSString *> *> *fooAry = [NSArray array]; Be careful about those *s. share | i...