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Rails: fields_for with index?

Is there a method (or way to pull off similar functionality) to do a fields_for_with_index ? 9 Answers ...
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List of standard lengths for database fields

I'm designing a database table and once again asking myself the same stupid question: How long should the firstname field be? ...
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How to check if an app is installed from a web-page on an iPhone?

... As far as I know you can not, from a browser, check if an app is installed or not. But you can try redirecting the phone to the app, and if nothing happens redirect the phone to a specified page, like this: setTimeout(function () { window.location = "https...
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Android adding simple animations while setvisibility(view.Gone)

I have designed a simple layout.I have finished the design without animation, but now I want to add animations when textview click event and I don't know how to use it. Did my xml design looks good or not? Any suggestions would be appreciated. ...
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What's the best way of implementing a thread-safe Dictionary?

I was able to implement a thread-safe Dictionary in C# by deriving from IDictionary and defining a private SyncRoot object: ...
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When to use NSInteger vs. int

...e using NSInteger vs. int when developing for iOS? I see in the Apple sample code they use NSInteger (or NSUInteger ) when passing a value as an argument to a function or returning a value from a function. ...
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How do I properly force a Git push?

I've set up a remote non-bare "main" repo and cloned it to my computer. I made some local changes, updated my local repository, and pushed the changes back to my remote repo. Things were fine up to that point. ...
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Modify SVG fill color when being served as Background-Image

Placing the SVG output directly inline with the page code I am able to simply modify fill colors with CSS like so: 16 Answe...
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Find out what process registered a global hotkey? (Windows API)

... Your question piqued my interest, so I've done a bit of digging and while, unfortunately I don't have a proper answer for you, I thought I'd share what I have. I found this example of creating keyboard hook (in Delphi) written in 1998, but is co...
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Set a default font for whole iOS app?

I have a custom font I want to use for everything displaying text in my app, labels, text views etc. 17 Answers ...