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Which is more efficient, a for-each loop, or an iterator?
...All iterators have as a fundamental requirement that next() should be an O(1) operation, making the loop O(n).
To verify that the iterator is used underwater by the new for loop syntax, compare the generated bytecodes from the following two Java snippets. First the for loop:
List<Integer> a...
Rails: fields_for with index?
...years ago, for a modern approach see:
https://stackoverflow.com/a/22640703/105403
This would actually be a better approach, following Rails documentation more closely:
<% @questions.each.with_index do |question,index| %>
<% f.fields_for :questions, question do |fq| %>
# he...
How do I apply a diff patch on Windows?
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Apply Patch
With TortoiseMerge:
Find and open an existing SVN repo directory
Create a new dir...
Drop multiple tables in one shot in mysql
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Example:
Let's say table A has two children B and C. Then we can use the following syntax to ...
Is it possible to use jQuery .on and hover?
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Running Windows batch file commands asynchronously
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edited Nov 21 '16 at 16:30
Peter Mortensen
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PHP sprintf escaping %
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answered Sep 8 '10 at 10:26
BoltClock♦BoltClock
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Avoiding memory leaks with Scalaz 7 zipWithIndex/group enumeratees
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FragmentPagerAdapter Exists Only In Android.Support.V4.App (and not Android.App)
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There is one that is in android.support.v13.app.FragmentPagerAdapter, which should do what you want it to do. It's a FragmentPagerAdapter for non-support fragments.
Android Studio Installation
Please add follow Gradle dependencies
dependencies {
compile 'com....