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How to get orientation-dependent height and width of the screen?

I'm trying to programmatically determine the current height and width of my application. I use this: 11 Answers ...
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How to get a list of installed android applications and pick one to run

...sked a similar question to this earlier this week but I'm still not understanding how to get a list of all installed applications and then pick one to run. ...
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How can you encode a string to Base64 in JavaScript?

... You can use btoa() and atob() to convert to and from base64 encoding. There appears to be some confusion in the comments regarding what these functions accept/return, so… btoa() accepts a “string” where each character represents an 8-b...
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Setup RSpec to test a gem (not Rails)

... used Bundler ( bundle gem my_gem ) to setup the structure for the new gem and edit the *.gemspec manually. I also added s.add_development_dependency "rspec", ">= 2.0.0" to gemspec and did a bundle install . ...
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Show an image preview before upload

...at let the user interact with files locally; That means you can load files and render them in the browser without actually having to upload the files. Part of the File API is the FileReader interface which lets web applications asynchronously read the contents of files . Here's a quick example that...
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ROW_NUMBER() in MySQL

... SELECT t0.col3 FROM table AS t0 LEFT JOIN table AS t1 ON t0.col1=t1.col1 AND t0.col2=t1.col2 AND t1.col3>t0.col3 WHERE t1.col1 IS NULL; “Get the rows in the table for which no other row with matching col1,col2 has a higher col3.” (You will notice this and most other groupwise-maximum solu...
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How to write DataFrame to postgres table?

There is DataFrame.to_sql method, but it works only for mysql, sqlite and oracle databases. I cant pass to this method postgres connection or sqlalchemy engine. ...
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Can “using” with more than one resource cause a resource leak?

... @WeylandYutani: What are you asking? – SLaks Jan 14 '14 at 16:18 9 ...
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Install go with brew, and running the gotour

... paste the export lines in .bash_profile, not in .bashrc, restart your mac and IntelliJ will find GOPATH (just tested, reboot needed) – firepol Jun 4 '15 at 4:53 ...
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Get url parameters from a string in .NET

...ng "google.com/…" doesn't detect the parameter q – Andrew Shepherd Jun 30 '09 at 4:26 @Andrew I confirm. It's strang...