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In Docker, what's the difference between a container and an image? [duplicate]

... running (or stopped) instances of some image. Start with the base image called 'ubuntu'. Let's run bash interactively within the ubuntu image and create a file. We'll use the -i and -t flags to give us an interactive bash shell. $ docker run -i -t ubuntu /bin/bash root@48cff2e9be75:/# ls bin bo...
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Using ECMAScript 6

... In Chrome, most of the ES6 features are hidden behind a flag called "Experimental JavaScript features". Visit chrome://flags/#enable-javascript-harmony, enable this flag, restart Chrome and you will get many new features. Arrow functions are not yet implemented in V8/Chrome, so this fl...
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Flattening a shallow list in Python [duplicate]

...st of iterables with a list comprehension, or failing that, what would you all consider to be the best way to flatten a shallow list like this, balancing performance and readability? ...
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linux 下巧妙使用squid代理服务器 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...e.log visible_hostname 192.168.16.1 cache_mgr lindenstar@163.com acl all src 0.0.0.0/0.0.0.0 http_access allow all 2.2 acl选项的格式如下: acl列表名称 列表类型 [-i] 列表值 列表名称:用于区分Squid的各个访问控制列表,任何两个访问控制列表不...
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How best to determine if an argument is not sent to the JavaScript function

...noid (see comments). Using the || operator has become standard practice - all the cool kids do it - but be careful: The default value will be triggered if the argument evaluates to false, which means it might actually be undefined, null, false, 0, '' (or anything else for which Boolean(...) returns...
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navigator.geolocation.getCurrentPosition sometimes works sometimes doesn't

...ame problem, and finding almost no information online about it. Nothing at all in the books. Finally I found this sober query on stackoverflow and (ha!) it was the final impetus I needed to set up an account here. And I have a partial answer, but alas not a complete one. First of all, realise that...
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what's the difference between “hadoop fs” shell commands and “hdfs dfs” shell commands?

...s dfs instead. hdfs dfs <args> same as 2nd i.e would work for all the operations related to HDFS and is the recommended command instead of hadoop dfs below is the list categorized as hdfs commands. namenode|secondarynamenode|datanode|dfs|dfsadmin|fsck|balancer|fetchdt|oiv|dfsgroups ...
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Calculate last day of month in JavaScript

...fectly well. Out of curiosity, what are you using to run the javascript on all these engines? Got everything set-up or some kind of tool? – neonski Oct 21 '08 at 17:04 5 ...
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cancelling a handler.postdelayed process

...nnable, SPLASH_DISPLAY_LENGTH); And this to remove it: myHandler.removeCallbacks(myRunnable); share | improve this answer | follow | ...
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Extension method and dynamic object

...aren't supported by dynamic typing in the form of extension methods, i.e. called as if they were instance methods. However, this will work: dynamic dList = list; Console.WriteLine(Enumerable.First(dList)); Of course, that may or may not be useful. If you could give more information about why and ...