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Getting the first index of an object

... 14 Answers 14 Active ...
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AngularJS check if form is valid in controller

I need to check if a form is valid in a controller. 4 Answers 4 ...
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Xcode 4 and Core Data: How to enable SQL Debugging

I'm working on a universal iOS app and I'd like to see the raw SQL in the logs when I'm debugging. There is some info in this blog post about how to enable raw SQL logging for iOS Core Data development. The given example is for Xcode 3 and it's just not clear to me how to enable this in Xcode 4. ...
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Range references instead values

I saw that range returns the key and the "copy" of the value. Is there a way for that range to return the adress of the item? Example ...
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Git: show more context when using git add -i or git add -e?

I'm selectively committing parts of a large file and I'd like to see more context around each hunk. Is this possible? 2 Ans...
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How can you find the height of text on an HTML canvas?

The spec has a context.measureText(text) function that will tell you how much width it would require to print that text, but I can't find a way to find out how tall it is. I know it's based on the font, but I don't know to convert a font string to a text height. ...
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Why are Standard iterator ranges [begin, end) instead of [begin, end]?

Why does the Standard define end() as one past the end, instead of at the actual end? 7 Answers ...
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Safe (bounds-checked) array lookup in Swift, through optional bindings?

If I have an array in Swift, and try to access an index that is out of bounds, there is an unsurprising runtime error: 19 A...
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Can you change what a symlink points to after it is created?

Does any operating system provide a mechanism (system call — not command line program) to change the pathname referenced by a symbolic link (symlink) — other than by unlinking the old one and creating a new one? ...
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Collections.emptyList() returns a List?

I'm having some trouble navigating Java's rule for inferring generic type parameters. Consider the following class, which has an optional list parameter: ...