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Can comments be used in JSON?

... be data too. You could have a designated data element called "_comment" (or something) that would be ignored by apps that use the JSON data. You would probably be better having the comment in the processes that generates/receives the JSON, as they are supposed to know what the JSON data will be i...
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java.lang.IllegalArgumentException: View not attached to window manager

I have an activity that starts AsyncTask and shows progress dialog for the duration of operation. The activity is declared NOT be recreated by rotation or keyboard slide. ...
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What is Java Servlet?

... A servlet is simply a class which responds to a particular type of network request - most commonly an HTTP request. Basically servlets are usually used to implement web applications - but there are also various frameworks which operate on top of servlets (e.g. Struts) to give a higher-level abst...
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Can I get “&&” or “-and” to work in PowerShell?

&& is notoriously hard to search for on Google Search, but the best I've found is this article which says to use -and . ...
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Doing something before program exit

How can you have a function or something that will be executed before your program quits? I have a script that will be constantly running in the background, and I need it to save some data to a file before it exits. Is there a standard way of doing this? ...
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Why is it faster to check if dictionary contains the key, rather than catch the exception in case it

...onary by its key is cheap, because it's a fast, O(1) operation. BTW: The correct way to do this is to use TryGetValue obj item; if(!dict.TryGetValue(name, out item)) return null; return item; This accesses the dictionary only once instead of twice. If you really want to just return null if t...
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How to check if a string contains a substring in Bash

...he * wildcards should be outside. Also note that a simple comparison operator is used (i.e. ==), not the regex operator =~. share | improve this answer | follow ...
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How to grab substring before a specified character jQuery or JavaScript

I am trying to extract everything before the ',' comma. How do I do this in JavaScript or jQuery? I tried this and not working.. ...
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When should you use constexpr capability in C++11?

It seems to me that having a "function that always returns 5" is breaking or diluting the meaning of "calling a function". There must be a reason, or a need for this capability or it wouldn't be in C++11. Why is it there? ...
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Detect if called through require or directly by command line

...n I detect whether my Node.JS file was called using SH: node path-to-file or JS: require('path-to-file') ? 5 Answers ...