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How do I use boolean variables in Perl?

...isn't perfect, merely the best I've found. It's meant to be practical, not all-encompassing. Do note that value returned by your bool does stringify to 0. Also, you are discouraged from creating inconsistent overloads, and the values you return could be considered such. (e.g. a && can be opt...
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Getting an “ambiguous redirect” error

... Bash can be pretty obtuse sometimes. The following commands all return different error messages for basically the same error: $ echo hello > bash: syntax error near unexpected token `newline` $ echo hello > ${NONEXISTENT} bash: ${NONEXISTENT}: ambiguous redirect $ echo hello ...
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Purge Kafka Topic

...--entity-name <topic name> --add-config retention.ms=1000 This also allows you to check the current retention period, e.g. kafka-configs --zookeeper <zkhost>:2181 --describe --entity-type topics --entity-name <topic name> – RHE Jun 2 '16 at ...
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Intent - if activity is running, bring it to front, else start a new one (from notification)

...recent task and click it, it will onResume(); Cant I onResume() programatically. – user9599745 Jan 29 at 20:58 @Javene...
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How to check whether a string is a valid HTTP URL?

...You may want to add more conditions to the uriResult.Scheme == ... Specifically https. It depends on what you need this for, but this small change was all I needed for it to work perfectly for me. – Fiarr Jan 22 '14 at 19:04 ...
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Server.UrlEncode vs. HttpUtility.UrlEncode

... HttpServerUtility.UrlEncode will use HttpUtility.UrlEncode internally. There is no specific difference. The reason for existence of Server.UrlEncode is compatibility with classic ASP. share | ...
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Selenium c# Webdriver: Wait Until Element is Present

...at can cause some unpredictable behavior leading to bad test results. Generally speaking, I would recommend using explicit waits over implicit waits. – mrfreester Dec 22 '16 at 19:26 ...
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VIP会员中心 · App Inventor 2 中文网,少儿编程陪伴者

...员中心 中文社区 关于 var _hmt = _hmt || []; (function() { var hm = document.createElement("script"); hm.src = "https://hm.baidu.com/hm.js?8d287b854d737bdc880e8ddeac1b309d"; var s = document.getElementsByTagName("script")[0]; s.parentNod...
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How do I find out which settings.xml file maven is using

...18:31:09+0100) Maven home: /usr/java/apache-maven-3.0.3 Java version: 1.6.0_12, vendor: Sun Microsystems Inc. Java home: /usr/java/jdk1.6.0_12/jre Default locale: en_US, platform encoding: UTF-8 OS name: "linux", version: "2.6.32-32-generic", arch: "i386", family: "unix" [INFO] Error stacktraces are...
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Struct constructor: “fields must be fully assigned before control is returned to the caller.”

... @RogerWillcocks, just call the default constructor then: public YourStruct(some params) : this() (see vittore's answer) – Thomas Levesque Nov 27 '12 at 2:25 ...