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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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Node.js: Difference between req.query[] and req.params

...fference between obtaining QUERY_STRING arguments via req.query[myParam] and req.params.myParam ? If so, when should I use which? ...
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Efficiently checking if arbitrary object is NaN in Python / numpy / pandas?

...lues. As I iterate over the data set, I need to detect such missing values and handle them in special ways. 2 Answers ...
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Measuring text width to be drawn on Canvas ( Android )

...a method which returns the width ( in pixels ) of a text to be drawn on an Android canvas using the drawText() method according to the Paint used to draw it? ...
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What's a redirect URI? how does it apply to iOS app for OAuth2.0?

...missions, "something" has to be called by Facebook to get back to the app, and that "something" is the redirect URI. Furthermore, the redirect URI should be different than the initial entry point of the app. The other key point to this puzzle is that you could launch your app from a URL given to a ...
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The differences between .build, .create, and .create! and when should they be used?

So I've been seeing people using .build , .create , and .create! within their controllers more and more lately. What's the difference from just using .new and passing the param'd object and then .save ? Are there pros and cons? Does using these other methods offer benefits? ...
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Is Hash Rocket deprecated?

... The author of that blog post is being overly dramatic and foolish, the => is still quite necessary. In particular: You must use the rocket for symbols that are not valid labels: :$set => x is valid but $set: x is not. In Ruby 2.2+ you can get around this problem with quo...
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In ASP.NET, when should I use Session.Clear() rather than Session.Abandon()?

Both Session.Clear() and Session.Abandon() get rid of session variables. As I understand it, Abandon() ends the current session, and causes a new session to be created thus causing the End and Start events to fire. ...
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How to make modal dialog in WPF?

I am writing my first application in WPF and want to have the user input some data on a modal dialog window. Apparently, this is not simple to do in WPF, because the parent window stays fully enabled, and the method that created the new child window doesn't stop and wait for the child window to cal...
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Can I simultaneously declare and assign a variable in VBA?

I'm new to VBA and want to know if I can convert the following declaration and assignment into one line: 5 Answers ...