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Get the value of an instance variable given its name
...variable_get("@#{name}")
There is no need to use + or intern; Ruby will handle this just fine. However, if you find yourself reaching into another object and pulling out its ivar, there's a reasonably good chance that you have broken encapsulation.
If you explicitly want to access an ivar, the ri...
Chrome extension: force popup.html to close
...nt listener to the background page. The background page triggers the event and the foreground responds by closing itself.
– Sean Anderson
Dec 20 '14 at 1:02
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Java ArrayList replace at specific index
I need help with this java please. I created an ArrayList of bulbs, and I'm trying to replace a bulb at specific index with another bulb. So with the following heading, how do I proceed?
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What's the result of += in C and C++?
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Semantics of the compound assignment operators is different in C and C++:
C99 standard, 6.5.16, part 3:
An assignment operator stores a value in the object designated by the left operand. An
assignment expression has the value of the left operand after the assignment, but is not an
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pinpointing “conditional jump or move depends on uninitialized value(s)” valgrind message
...ve been getting some mysterious uninitialized values message from valgrind and it's been quite the mystery as of where the bad value originated from.
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Are static class instances unique to a request or a server in ASP.NET?
...asses unique to each web request, or are they instantiated whenever needed and GCed whenever the GC decides to disposed of them?
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Difference between jQuery’s .hide() and setting CSS to display: none
...er than writing out .css("display", "none") , but what’s the difference and what are both of them actually doing to the HTML element?
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Entity Framework - Add Navigation Property Manually
...tity Framework Model (4.0) from my database. I did not design the database and do not have any control over the schema, but there are a few tables that do not have foreign key constraints defined, but there is an implicit relationship defined.
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Multiline comment in PowerShell
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In PowerShell v2 and newer, use the following syntax for the multiline comments:
<# a
b
c #>
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How to do a less than or equal to filter in Django queryset?
...tom field in each users profile called profile. This field is called level and is an integer between 0-3.
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