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How can I efficiently select a Standard Library container in C++11?
... you need an ordered associative container
Otherwise, jump to the question 2.
Question 1.1: Ordered ?
If you do not need a specific order, use an unordered_ container, otherwise use its traditional ordered counterpart.
Question 1.2: Separate Key ?
If the key is separate from the value, use a...
Determine if an HTML element's content overflows
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Normally, you can compare the client[Height|Width] with scroll[Height|Width] in order to detec...
disable textbox using jquery?
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210
HTML
<span id="radiobutt">
<input type="radio" name="rad1" value="1" />
<i...
Truncate Two decimal places without rounding
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21 Answers
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How do you print in Sublime Text 2
Sublime Text 2 seems like a great editor. I just started using it a week ago in eval mode and it doesn't seem to have any printing functionality. This seems preposterous to me, but I can't find it anywhere.
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How can I generate Javadoc comments in Eclipse? [duplicate]
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edited Apr 17 '19 at 8:23
Jacob van Lingen
5,78822 gold badges3535 silver badges6464 bronze badges
an...
Parse a .py file, read the AST, modify it, then write back the modified source code
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12 Answers
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Determine what attributes were changed in Rails after_save callback?
... through Rails 5.1 (but is deprecated in 5.1 and has breaking changes in 5.2). You can read about the change in this pull request.
In your after_update filter on the model you can use _changed? accessor. So for example:
class SomeModel < ActiveRecord::Base
after_update :send_notification_aft...
How to write LaTeX in IPython Notebook?
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edited Jun 18 '14 at 12:36
katahdin
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answered May 21 '13 at 1:1...