大约有 45,000 项符合查询结果(耗时:0.0533秒) [XML]

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Why do we <em>nem>eed message brokers like RabbitMQ over a database like P<em>osem>tgreSQL?

... Rabbit's queues reside i<em>nem> memory <em>a<em>nem>dem> will therefore be much faster tha<em>nem> impleme<em>nem>ti<em>nem>g this i<em>nem> a database. A (good)dedicated message queue should also provide esse<em>nem>tial queuei<em>nem>g related features such as throttli<em>nem>g/flow co<em>nem>trol, <em>a<em>nem>dem> the ability to cho<em>osem>e differ...
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Iteratio<em>nem> over std::vector: u<em>nem>sig<em>nem>ed vs sig<em>nem>ed i<em>nem>dex variable

... use differe<em>nem>ce_type? sizeof is defi<em>nem>ed to retur<em>nem> size_t :) i do<em>nem>'t u<em>nem>derst<em>a<em>nem>dem> you. if i were to subtract poi<em>nem>ters from each other, differe<em>nem>ce_type would be the right choice. – Joha<em>nem><em>nem>es Schaub - litb Ja<em>nem> 4 '09 at 9:38 ...
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How to get disti<em>nem>ct values from a<em>nem> array of objects i<em>nem> JavaScript?

... If this were PHP I'd build a<em>nem> array with the keys <em>a<em>nem>dem> take array_keys at the e<em>nem>d, but JS has <em>nem>o such luxury. I<em>nem>stead, try this: var flags = [], output = [], l = array.le<em>nem>gth, i; for( i=0; i&lt;l; i++) { if( flags[array[i].age]) co<em>nem>ti<em>nem>ue; flags[array[i].age] = true; ...
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Movi<em>nem>g decimal places over i<em>nem> a double

...Decimal. The problem you have is that 0.1 is <em>nem>ot a<em>nem> exact represe<em>nem>tatio<em>nem>, <em>a<em>nem>dem> by performi<em>nem>g the calculatio<em>nem> twice, you are compou<em>nem>di<em>nem>g that error. However, 100 ca<em>nem> be represe<em>nem>ted accurately, so try: double x = 1234; x /= 100; System.out.pri<em>nem>tl<em>nem>(x); which pri<em>nem>ts: 12.34 This works because Doub...
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What are the differe<em>nem>ces betwee<em>nem> Ch<em>osem>e<em>nem> <em>a<em>nem>dem> Select2?

Ch<em>osem>e<em>nem> <em>a<em>nem>dem> Select2 are the two more popular libraries for exte<em>nem>di<em>nem>g selectboxes. 11 A<em>nem>swers ...
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Why do people write the #!/usr/bi<em>nem>/e<em>nem>v pytho<em>nem> sheba<em>nem>g o<em>nem> the first li<em>nem>e of a Pytho<em>nem> script?

...y havi<em>nem>g a #! at the start of the first li<em>nem>e, followed by the i<em>nem>terpreter (<em>a<em>nem>dem> a<em>nem>y flags it may <em>nem>eed). If you're talki<em>nem>g about other platforms, of course, this rule does <em>nem>ot apply (but that "sheba<em>nem>g li<em>nem>e" does <em>nem>o harm, <em>a<em>nem>dem> will help if you ever copy that script to a platform with a U<em>nem>ix base, such ...
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Re<em>nem>der Partial View Usi<em>nem>g jQuery i<em>nem> ASP.<em>Nem>ET MVC

... however, call a method (actio<em>nem>) that will re<em>nem>der the partial view for you <em>a<em>nem>dem> add it to the page usi<em>nem>g jQuery/AJAX. I<em>nem> the below, we have a butto<em>nem> click h<em>a<em>nem>dem>ler that loads the url for the actio<em>nem> from a data attribute o<em>nem> the butto<em>nem> <em>a<em>nem>dem> fires off a GET request to replace the DIV co<em>nem>tai<em>nem>ed i<em>nem> the par...
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How to add a butto<em>nem> to Prefere<em>nem>ceScree<em>nem>

Is there a<em>nem>y way to add a butto<em>nem> to the bottom of prefere<em>nem>ces scree<em>nem> <em>a<em>nem>dem> make them work correct whe<em>nem> scrolli<em>nem>g? 12 A<em>nem>swers ...
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Which is faster: while(1) or while(2)?

... jmp .L2 .seh_e<em>nem>dproc .ide<em>nem>t "GCC: (tdm64-2) 4.8.1" With -O2 <em>a<em>nem>dem> -O3 (same output): .file "mai<em>nem>.c" .i<em>nem>tel_sy<em>nem>tax <em>nem>oprefix .def __mai<em>nem>; .scl 2; .type 32; .e<em>nem>def .sectio<em>nem> .text.startup,"x" .p2alig<em>nem> 4,,15 .globl mai<em>nem> .def mai<em>nem>; .scl 2; ....
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mo<em>nem>goDB/mo<em>nem>go<em>osem>e: u<em>nem>ique if <em>nem>ot <em>nem>ull

...e sparse if you just add a sparse : true to your schema. You have to drop <em>a<em>nem>dem> re-add the i<em>nem>dex. Du<em>nem><em>nem>o if that's expected or a bug. – Adam A Ju<em>nem> 5 '12 at 22:34 ...