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Is Zookeeper a must for Kafka?

... coordination system. So Kafka, Storm, HBase, SolrCloud to just name a few all use Zookeeper to help manage and coordinate. Kafka is a distributed system and is built to use Zookeeper. The fact that you are not using any of the distributed features of Kafka does not change how it was built. In any ...
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Best PHP IDE for Mac? (Preferably free!) [closed]

...wdown on Mac IDE's for PHP NetBeans Free! Plus, the best functionality of all offerings. Includes inline database connections, code completion, syntax checking, color coding, split views etc. Downside: It's a memory hog on the Mac. Be prepared to allow half a gig of memory then you'll need to shu...
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Where am I wrong about my project and these Javascript Frameworks?

... Which of the frameworks you've tried have you taken for a spin? Personally, I got into ExtJS development because the projects I work on require a lot of customization of controls/widgets. ExtJS has a ton of them right out of the box and can always be extended, combined, or munged into whatever...
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What is the difference between gsub and sub methods for Ruby Strings

...ticed before. I've been using :gsub and it appears that they are essentially the same. Can anyone explain the difference to me? Thanks! ...
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Recommended way to save uploaded files in a servlet application

...e server's work folder get synced with last updates (this is in IDE terms called "publishing"). This is the main cause of the problem you're seeing. In real world code there are circumstances where storing uploaded files in the webapp's deploy folder will not work at all. Some servers do (either by...
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JavaScript module pattern with example [closed]

... Your first example (function() { /* Your code goes here */}()); is actually a IIFE (Immediately Invoking Function Expression), ok it's anonymous coz it has no name so you may even want to call it an IIAFE (Immediately Invoking Anonymous Function Expression) see more on IIFE on stackoverflow.com/...
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How can I process each letter of text using Javascript?

... Note that both the spread operator (first example) and the split call (last example) will create a new array. This won't usually be a problem, but could be costly for large strings or frequent uses. – Randolpho Feb 21 '19 at 16:02 ...
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Do you use NULL or 0 (zero) for pointers in C++?

...ded. That's less common these days. If you have to name the null pointer, call it nullptr; that's what it's called in C++11. Then, nullptr will be a keyword. That said, don't sweat the small stuff. share | ...
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VS2005混合编译ARM汇编代码 - C/C++ - 清泛网 - 专注C/C++及内核技术

...ame this block of code EXPORT TEST IMPORT iGlobal ; ; Called from C as int ARMTEST1(int, int, int, int); ; The first 4 parameters are passed in r0-r3, more parameters would be passed on the stack ; TEST proc add r0,r0,r1 ; add all of the inputs together add r0,r0...
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Using a dispatch_once singleton model in Swift

...variables), and is thread safe by the definition of let. This is now officially recommended way to instantiate a singleton. Class constants were introduced in Swift 1.2. If you need to support an earlier version of Swift, use the nested struct approach below or a global constant. Nested struct cl...