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Retain cycle on `self` with blocks

...sue is identical to the workaround for the retain issue; namely, using the __block storage class for the variable. In any case, to answer your question, there's no real alternative here. If you're designing your own block-based API, and it makes sense to do so, you could have the block get passed t...
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Best way to do multi-row insert in Oracle?

... This works in Oracle: insert into pager (PAG_ID,PAG_PARENT,PAG_NAME,PAG_ACTIVE) select 8000,0,'Multi 8000',1 from dual union all select 8001,0,'Multi 8001',1 from dual The thing to remember here is to use the from dual statement. (source) ...
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How to select multiple files with ?

...ltiple="multiple" and if you are using php then you will get the data in $_FILES and use var_dump($_FILES) and see output and do processing Now you can iterate over and do the rest share | improve...
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What is the need of JSF, when UI can be achieved with JavaScript libraries such as jQuery and Angula

... You can find a real world kickoff JSF based project here: Java EE Kickoff App. You'll see that it contains next to JSF as good HTML5, CSS3 and jQuery. See also: Difference between Request MVC and Component MVC Difference between JSP, Servlet and JSF What are the main disadvantages of JSF 2.0? Is i...
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Why is setTimeout(fn, 0) sometimes useful?

...op-down selection before the browser was ready, meaning that the bug would appear. This race existed because JavaScript has a single thread of execution that is shared with page rendering. In effect, running JavaScript blocks the updating of the DOM. Your workaround was: setTimeout(callback, 0) ...
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How do you build a Singleton in Dart?

...t's easy to build a singleton: class Singleton { static final Singleton _singleton = Singleton._internal(); factory Singleton() { return _singleton; } Singleton._internal(); } You can construct it like this main() { var s1 = Singleton(); var s2 = Singleton(); print(identical(...
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MAMP Pro 3.05 on Mavericks updated to Yosemite - Apache does not start

...e the file “envvars” located in /Applications/MAMP/Library/bin into “_envvars” Test Update: It works! Works for Yosemite release too! share | improve this answer | ...
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Linux日志管理Rsyslog入门 - C/C++ - 清泛网 - 专注IT技能提升

...,请听题:请把多台Web服务器上的access日志发送到统一的App服务器。实际上新版Nginx可以直接发Syslog请求。 设置Web服务器: module(load="imfile") ruleset(name="remote") { action(type="omfwd" Protocol="tcp" Target="<HOST>" ...
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Linux日志管理Rsyslog入门 - C/C++ - 清泛网 - 专注IT技能提升

...,请听题:请把多台Web服务器上的access日志发送到统一的App服务器。实际上新版Nginx可以直接发Syslog请求。 设置Web服务器: module(load="imfile") ruleset(name="remote") { action(type="omfwd" Protocol="tcp" Target="<HOST>" ...
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Linux日志管理Rsyslog入门 - C/C++ - 清泛网 - 专注IT技能提升

...,请听题:请把多台Web服务器上的access日志发送到统一的App服务器。实际上新版Nginx可以直接发Syslog请求。 设置Web服务器: module(load="imfile") ruleset(name="remote") { action(type="omfwd" Protocol="tcp" Target="<HOST>" ...