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Querying DynamoDB by date

... // More code here } }); Essentially your query looks like: SELECT * FROM TABLE WHERE DataID = "some_id" AND Created > timestamp; The secondary Index will increase the read/write capacity units required so you need to consider that. It still is a lot better than doing a scan, whi...
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Populating spinner directly in the layout xml

...l_parent" android:layout_height="wrap_content" android:drawSelectorOnTop="true" android:entries="@array/array_name" /> I've heard this doesn't always work on the designer, but it compiles fine. ...
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How to use bootstrap-theme.css with bootstrap 3?

... This should be the selected answer. – Patrick Cullen May 13 '14 at 1:31 11 ...
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Example of multipart/form-data

... > a.html Run: nc -l localhost 8000 Open the HTML on your browser, select the files and click on submit and check the terminal. nc prints the request received. Firefox sent: POST / HTTP/1.1 Host: localhost:8000 User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:29.0) Gecko/20100101 Fire...
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Java Reflection Performance

...Richard Riley Generally class instantiation is a pretty rare event for the selected classes you will use reflection on. I suppose you are right though--some people might instantiate every class reflectively, even ones that are recreated constantly. I would call that pretty bad programming (althoug...
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Check if an apt-get package is installed and then install it if it's not on Linux

... is available The documentations are also very unclear, e.g.: sudo apt dselect-upgrade did not remove certbot when it was marked as deinstall, even though man apt-get seems to indicate that: dselect-upgrade is used in conjunction with the traditional Debian packaging front-end, dselect(1). ...
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How to measure time taken by a function to execute

...'s execution time. To profile your JavaScript: In Chrome, press F12 and select the Profiles tab, then Collect JavaScript CPU Profile. In Firefox, install/open Firebug, and click on the Profile button. In IE 9+, press F12, click on Script or Profiler (depending on your version of IE). Alternat...
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Array slicing in Ruby: explanation for illogical behaviour (taken from Rubykoans.com)

... Read the slice syntax array[x,y] as "starting after x elements in array, select up to y elements". This is only meaningful if array has at least x elements. share | improve this answer | ...
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How do I disable a Pylint warning?

...this error-message in the Pylint Console (windows - show view - Console, select Pylint console from the console options besides the console icon.) share | improve this answer | ...
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Generate pdf from HTML in div using Javascript

...are still done in jQuery style "#id", but it does not mean that all jQuery selectors are supported. Therefore replacing '#ignorePDF' with class selectors like '.ignorePDF' did not work for me. Instead you will have to add the same handler for each and every element, which you want to ignore like: ...