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What's a redirect URI? how does it apply to iOS app for OAuth2.0?

... Read this: http://www.quora.com/OAuth-2-0/How-does-OAuth-2-0-work or an even simpler but quick explanation: http://agileanswer.blogspot.se/2012/08/oauth-20-for-my-ninth-grader.html The redirect URI is the callback entry point of the app. Think about how OAuth fo...
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TypeScript: casting HTMLElement

...var script = <HTMLScriptElement>document.getElementsByName("script")[0]; However, unfortunately you cannot do: var script = (<HTMLScriptElement[]>document.getElementsByName(id))[0]; You get the error Cannot convert 'NodeList' to 'HTMLScriptElement[]' But you can do : (<HTMLS...
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javascript set a variable if undefined

...efined. It would therefore not only match undefined but also null, false, 0, NaN, "" (but not "0"). If you want to set to default only if the variable is strictly undefined then the safest way is to write: var x = (typeof x === 'undefined') ? your_default_value : x; On newer browsers it's actu...
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Pandas get topmost n records within each group

... >>> df.groupby('id').head(2) id value id 1 0 1 1 1 1 2 2 3 2 1 4 2 2 3 7 3 1 4 8 4 1 (Keep in mind that you might need to order/sort before, depending on your data) EDIT: As mentioned by the questioner, use df.gro...
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Hour from DateTime? in 24 hours format

...he hour but show it in 24 hours format. For example: If the hour is 2:20:23 p.m. i want to convert it to 14:20 and that's it. ...
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Is there a way to 'uniq' by column?

... delimiter -k1,1 for the key field 1 Test result: overflow@domain2.com,2009-11-27 00:58:29.793000000,xx3.net,255.255.255.0 stack2@domain.com,2009-11-27 01:05:47.893000000,xx2.net,127.0.0.1 share | ...
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Format decimal for percentage values?

...se the P format string. This will vary by culture: String.Format("Value: {0:P2}.", 0.8526) // formats as 85.26 % (varies by culture) share | improve this answer | follow ...
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How to calculate a logistic sigmoid function in Python?

... math.exp(-x)) And now you can test it by calling: >>> sigmoid(0.458) 0.61253961344091512 Update: Note that the above was mainly intended as a straight one-to-one translation of the given expression into Python code. It is not tested or known to be a numerically sound implementation. I...
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How do I upload a file with metadata using a REST web service?

...": 52.12873 } To create the metadata entry and return a response like: 201 Created Location: http://server/data/media/21323 { "Name": "Test", "Latitude": 12.59817, "Longitude": 52.12873, "ContentUrl": "http://server/data/media/21323/content" } The client can then use this Conten...
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Numpy how to iterate over columns of array?

... – Ibrahim Muhammad Sep 23 '13 at 17:08 49 For those wondering, array.T isn't costly, as it just c...