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Understanding recursion [closed]
...h, and two simple return statements that almost wrote themsleves, directly from our specification?
How to sum a node:
If a node is null
its sum is zero
otherwise
its sum is its value
plus the sum of its left child node
plus the sum of its right child node
That's the power of recu...
Is there a way to detect if a browser window is not currently active?
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@bellpeace: IE should propagate focusin and focusout from the iframe to the upper window. For newer browsers, you'd just have to handle the focus and blur events on each iframe's window object. You should use the updated code I just added which will at least cover those cas...
Change URL parameters
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Is there a way to retrieve the base url from this plugin? For example, if my URL is 'youtube.com/watch?v=PZootaxRh3M', get 'youtube.com/watch'
– Matt Norris
May 18 '11 at 2:59
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Pure virtual function with implementation
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In fact, making a base pure call from a constructor results in implementation-defined behavior. In VC++, that amounts to a _purecall crash.
– Ofek Shilon
Jun 13 '10 at 21:30
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iFrame src change event detection?
...on(){
alert('frame has (re)loaded');
});
As mentioned by subharb, as from JQuery 3.0 this needs to be changed to:
$('#iframe').on('load', function() {
alert('frame has (re)loaded ');
});
https://jquery.com/upgrade-guide/3.0/#breaking-change-load-unload-and-error-removed
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When would you use the different git merge strategies?
From the man page on git-merge, there are a number of merge strategies you can use.
4 Answers
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optional local variables in rails partial templates: how do I get out of the (defined? foo) mess?
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To get over the nil issue, I'm copying the code from the OP's link (api.rubyonrails.org/classes/ActionView/Base.html) <% if local_assigns.has_key? :headline %> Headline: <%= headline %> <% end %> -- has_key avoids the nil / false situation, and probably...
Histogram using gnuplot?
... rendered as centered on their lower bound. Strictly they ought to extend from the lower bound to the upper bound. This can be corrected by modifying the bin function: bin(x,width)=width*floor(x/width) + width/2.0
share
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Default value of a type at Runtime [duplicate]
... /// <para></para>
/// false = The object has been changed from its default value.
/// </returns>
public static bool IsObjectSetToDefault(this Type ObjectType, object ObjectValue)
{
// If no ObjectType was supplied, attempt to determine from ObjectValue
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Can regular expressions be used to match nested patterns? [duplicate]
...data structure underlying a regular expression) does not have memory apart from the state it's in, and if you have arbitrarily deep nesting, you need an arbitrarily large automaton, which collides with the notion of a finite automaton.
You can match nested/paired elements up to a fixed depth, where...