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How is the java memory pool divided?
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332
Heap memory
The heap memory is the runtime data area from which the Java VM allocates memory fo...
What Every Programmer Should Know About Memory?
... of Ulrich Drepper's What Every Programmer Should Know About Memory from 2007 is still valid. Also I could not find a newer version than 1.0 or an errata.
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raw vs. html_safe vs. h to unescape html
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Rafael Perea
4288 bronze badges
answered Nov 23 '10 at 2:12
Fábio BatistaFábio Batista
23....
How do I (or can I) SELECT DISTINCT on multiple columns?
I need to retrieve all rows from a table where 2 columns combined are all different. So I want all the sales that do not have any other sales that happened on the same day for the same price. The sales that are unique based on day and price will get updated to an active status.
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How to encode URL parameters?
.../www.image.com/?username=unknown&password=unknown");
Result
http%3A%2F%2Fwww.image.com%2F%3Fusername%3Dunknown%26password%3Dunknown
With Javascript:
var myUrl = "http://www.image.com/?username=unknown&password=unknown";
var encodedURL= "http://www.foobar.com/foo?imageurl=" + encodeURIC...
How to unset max-height?
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312
Reset it to none:
pre {
max-height: 250px;
}
pre.doNotLimitHeight {
max-height: none;
}
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Access Asset Catalog programmatically
...t group without any extensions.
So, if you add an image named @"my-button@2x.png" to the Asset Catalog, it will create an asset group called my-button.
Now, all you have to do is access the image like so:
// Objective-C
[UIImage imageNamed:@"my-button"];
// Swift
UIImage(named: "my-button")
Als...
How to diff a commit with its parent?
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answered Jan 12 '09 at 18:06
mipadimipadi
343k7777 gold badges491491 silver badges463463 bronze badges
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OSGi: What are the differences between Apache Felix and Apache Karaf?
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210
The 'lightweight OSGi container' label is contrasting Karaf with more feature rich OSGi contai...
What exactly does the Access-Control-Allow-Credentials header do?
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276
By default, CORS does not include cookies on cross-origin requests. This is different from oth...