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Why does this Java code compile?
...s test {
int a = a = 1;
int b = b + 1;
public static void Main(String[] args) {
int c = c = 1;
int d = d + 1;
}
}
The declaration of b is invalid and fails with an illegal forward reference error.
The declaration of d is invalid and fails with an variable d might no...
How to fix “Attempted relative import in non-package” even with __init__.py
...ry to execute the above shell command, the fact that you need __init__.pys all the way down, and the __package__-modifying trickery (described below by BrenBarn) needed to allow these imports for executable scripts (e.g. when using a shebang and doing ./my_script.py at the Unix shell) would all be u...
How to validate a url in Python? (Malformed or not)
...
This allows everything. It returns True for the string fake or even for a blank string. There will never be any errors because those attributes are always there, and the list will always have a boolean value of True because it contains those attributes. Even if all of th...
Find all packages installed with easy_install/pip?
Is there a way to find all Python PyPI packages that were installed with easy_install or pip? I mean, excluding everything that was/is installed with the distributions tools (in this case apt-get on Debian).
...
What's invokedynamic and how do I use it?
...mple would be something like:
Compiled from "Range.java"
public java.lang.String toString();
descriptor: ()Ljava/lang/String;
flags: (0x0001) ACC_PUBLIC
Code:
stack=1, locals=1, args_size=1
0: aload_0
1: invokedynamic #18, 0 // InvokeDynamic #0:toString:(LRange;...
Clear Text Selection with JavaScript
...ve created a full working example based on your suggestion but adding some extras jsfiddle.net/mkrivan/hohx4nes The most important line is window.getSelection().addRange(document.createRange()); Without this IE does not deselect text in some conditions. And I have changed the ordering of the method ...
Hidden features of Ruby
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If items is a string you don't have to enclose it with [*…]. String.each doesn't iterate over characters as some may expect. It just returns itself to the block.
– mxcl
Feb 17 '10 at 13:49
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How do I speed up the scroll speed in a JScrollPane when using the mouse wheel?
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What advantage does this offer that I should include an extra class in my project instead of writing one line of code?
– Erick Robertson
Feb 26 '12 at 16:03
2
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IEnumerable vs List - What to Use? How do they work?
...the internal workings. List is an implementation of IList and as such has extra functionality on top of those in IList (e.g. Sort, Find, InsertRange). If you force yourself to use IList over List, you loose these methods that you may require
– Jonathan Twite
...
REST API Best practices: Where to put parameters? [closed]
...ters in an url:
Optional parameters tend to be easier to put in the query string.
If you want to return a 404 error when the parameter value does not correspond to an existing resource then I would tend towards a path segment parameter. e.g. /customer/232 where 232 is not a valid customer id.
If ...