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How do I implement basic “Long Polling”?

...ritten in any language (I chose Apache/PHP as they are very common, and I happened to be running them locally) Then, in Javascript, you request the above file (msg_srv.php), and wait for a response. When you get one, you act upon the data. Then you request the file and wait again, act upon the dat...
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reStructuredText tool support

...as a comprehensive list at the Wikipedia reStructuredText page , but this apparently " did not meet the notability guideline for web content " and was removed . ...
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Difference between thread's context class loader and normal classloader

...e named class), the library that does the reflection should always ask the application which class loader to use, by receiving the ClassLoader as a parameter from the application. The application (which knows all the classes that need constructing) should pass it getClass().getClassLoader(). Any ot...
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Trigger a button click with JavaScript on the Enter key in a text box

... In jQuery, the following would work: $("#id_of_textbox").keyup(function(event) { if (event.keyCode === 13) { $("#id_of_button").click(); } }); $("#pw").keyup(function(event) { if (event.keyCode === 13) { $("#myButton").click(); ...
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Simulating group_concat MySQL function in Microsoft SQL Server 2005?

I'm trying to migrate a MySQL-based app over to Microsoft SQL Server 2005 (not by choice, but that's life). 11 Answers ...
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Find integer index of rows with NaN in pandas dataframe

....: df['a'].ix[index[0]] >>> 1.452354 For the integer index: df_index = df.index.values.tolist() [df_index.index(i) for i in index] >>> [3, 6] share | improve this answer ...
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How to append text to an existing file in Java?

...catch(IOException ex){ ex.printStackTrace(); } – php_coder_3809625 Aug 18 '16 at 12:12 ...
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Remove credentials from Git

...ettings are located under the "classic" Controll Panel, not the "Settings" App (modern UI). Just to avoid confusion. – DanielH Jun 8 '16 at 9:32 1 ...
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Querying DynamoDB by date

...IndexName: "DataID-Created-index", KeyConditionExpression: "DataID = :v_ID AND Created > :v_created", ExpressionAttributeValues: {":v_ID": {S: "some_id"}, ":v_created": {N: "timestamp"} }, ProjectionExpression: "ID, DataID, Created, Data" }; ddb.qu...
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Determining if a variable is within range?

... You could use if (1..10).cover? i then thing_1 elsif (11..20).cover? i then thing_2 and according to this benchmark in Fast Ruby is faster than include? share | impr...