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How do you track record relations in NoSQL?

I am trying to figure out the equivalent of foreign keys and indexes in NoSQL KVP or Document databases. Since there are no pivotal tables (to add keys marking a relation between two objects) I am really stumped as to how you would be able to retrieve data in a way that would be useful for normal we...
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navigator.geolocation.getCurrentPosition sometimes works sometimes doesn't

... I have been having exactly the same problem, and finding almost no information online about it. Nothing at all in the books. Finally I found this sober query on stackoverflow and (ha!) it was the final impetus I needed to set up an account here. And I have a partial an...
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AngularJS - difference between pristine/dirty and touched/untouched

AngularJS Developer Guide - Forms tell there are many styles and directives regarding forms and fields. For each one, a CSS class: ...
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Change one value based on another value in pandas

I'm trying to reprogram my Stata code into Python for speed improvements, and I was pointed in the direction of PANDAS. I am, however, having a hard time wrapping my head around how to process the data. ...
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Declaring a custom android UI element using XML

How do I declare an Android UI element using XML? 6 Answers 6 ...
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Android : difference between invisible and gone?

What is the difference between invisible and gone for the View visibility status? 8 Answers ...
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Sleep in JavaScript - delay between actions

...pdates, keeping some internal state, or whatever). – Anders Sandvig Feb 10 '10 at 8:28 5 This doe...
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MongoDB: Combine data from multiple collections into one..how?

...you can use as an _id. For example, let's say you have a users collection and a comments collection and you want to have a new collection that has some user demographic info for each comment. Let's say the users collection has the following fields: _id firstName lastName country gender age And...
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Breaking/exit nested for in vb.net

...you want: Goto. In general, using goto is considered to be bad practice (and rightfully so), but using goto solely for a forward jump out of structured control statements is usually considered to be OK, especially if the alternative is to have more complicated code. For Each item In itemList ...
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Draw text in OpenGL ES

I'm currently developing a small OpenGL game for the Android platform and I wonder if there's an easy way to render text on top of the rendered frame (like a HUD with the player´s score etc). The text would need to use a custom font also. ...