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Are there legitimate uses for JavaScript's “with” statement?
...ight you can say var bc2 = context.bezierCurveTo; and then just go bc2(x,x,etc); each time you want to call it. That is quite fast and even less verbose, while with is super slow.
– Jimbo Jonny
Oct 26 '15 at 17:32
...
What are Runtime.getRuntime().totalMemory() and freeMemory()?
...tion</i>: May include no longer referenced objects, soft references, etc.
* that will be swept away by the next garbage collection.
*/
public long getUsed() {
return getAllocatedTotal() - getAllocatedFree();
}
/**
* <b>Maximum allocation</b>: the...
Difference between 'python setup.py install' and 'pip install'
...es, like familiar package managers including: dpkg, apt, yum, urpmi, ports etc. Under the hood, it will run python setup.py install, but with specific options to control how and where things end up installed.
In summary: use pip.
...
How do I create a parameterized SQL query? Why Should I?
...en you can turn off permissions for SELECT, UPDATE, ALTER, CREATE, DELETE, etc (just about everything but EXEC) for the application user account and get some protection that way.
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What's the difference between identifying and non-identifying relationships?
... row and still can identify the book row by some other field (ISBN, ID, ...etc) , BUT NOT the author of the book!!
I think a valid example of an identifying relationship would be the relationship between (products table) and a (specific product details table) 1:1
products table
+------+----------...
Does Swift have access modifiers?
... you use MyClass instead of MyClassImplementation in your parameter types, etc. it should all just work:
func breakingAndEntering(foo:MyClass)->String{
return foo.privateMethod()
//ERROR: 'MyClass' does not have a member named 'privateMethod'
}
There are some cases of direct assignment whe...
UICollectionView inside a UITableViewCell — dynamic height?
...e another scroll view as they try to calculate content sizes, reuse cells, etc.
I recommend you to use only a collection view for all your purposes.
You can divide it in sections and "treat" some sections' layout as a table view and others as a collection view. After all there's nothing you can't ...
Getting the last element of a list
...ome_list[-1] gets the last element, some_list[-2] gets the second to last, etc, all the way down to some_list[-len(some_list)], which gives you the first element.
You can also set list elements in this way. For instance:
>>> some_list = [1, 2, 3]
>>> some_list[-1] = 5 # Set the l...
REST API - why use PUT DELETE POST GET?
...tandards like HTTP, MIME types, URI, RDF, linked data vocabs, hydra vocab, etc...
Convert PDF to clean SVG? [closed]
... Java OCR and creation of higher-level graphics primitives (arrows, boxes, etc.) See https://bitbucket.org/petermr/imageanalysis https://bitbucket.org/petermr/diagramanalyzer https://bitbucket.org/petermr/norma and https://bitbucket.org/petermr/ami-core . This is a funded project to capture 100 mill...