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Switch statement for greater-than/less-than
...for Windows was 10ms instead of 1ms.
if-immediate
This is the fastest in all tested environments, except in ... drumroll MSIE! (surprise, surprise). This is the recommended way to implement it.
if (val < 1000) { /*do something */ } else
if (val < 2000) { /*do something */ } else
...
if (val...
git add only modified changes and ignore untracked files
...
Ideally your .gitignore should prevent the untracked ( and ignored )files from being shown in status, added using git add etc. So I would ask you to correct your .gitignore
You can do git add -u so that it will stage the modifi...
Is using Random and OrderBy a good shuffle algorithm?
...asy to implement an O(n) shuffle. The code in the question "works" by basically giving a random (hopefully unique!) number to each element, then ordering the elements according to that number.
I prefer Durstenfield's variant of the Fisher-Yates shuffle which swaps elements.
Implementing a simple S...
What is “with (nolock)” in SQL Server?
...ly write new rows, you never update them.
– Jonathan Allen
Mar 26 '09 at 17:56
49
@Grauenwolf- An...
How to get ERD diagram for an existing database?
...that.
Description:
The references graph is a great feature as it automatically renders all primary/foreign key mappings (also called referential integrity constraints) in a graph style. The table nodes and relations are layed out automatically, with a number of layout modes available. The resulting...
LINQ-to-SQL vs stored procedures? [closed]
...
Some advantages of LINQ over sprocs:
Type safety: I think we all understand this.
Abstraction: This is especially true with LINQ-to-Entities. This abstraction also allows the framework to add additional improvements that you can easily take advantage of. PLINQ is an example of adding...
Setting default permissions for newly created files and sub-directories under a directory in Linux?
...that every file and directory created under this shared directory automatically had u=rwxg=rwxo=r permissions.
4 Answers
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Why are only final variables accessible in anonymous class?
...used in an anonymous inner class or lambda expression though.
It's basically due to the way Java manages closures.
When you create an instance of an anonymous inner class, any variables which are used within that class have their values copied in via the autogenerated constructor. This avoids th...
Draw a perfect circle from user's touch
I have this practice project that allows the user to draw on the screen as they touch with their fingers. Very simple App I did as exercise way back.
My little cousin took the liberty of drawing things with his finger with my iPad on this App (Kids drawings: circle, lines, etc, whatever came to his ...
Reduce left and right margins in matplotlib plot
...
One way to automatically do this is the bbox_inches='tight' kwarg to plt.savefig.
E.g.
import matplotlib.pyplot as plt
import numpy as np
data = np.arange(3000).reshape((100,30))
plt.imshow(data)
plt.savefig('test.png', bbox_inches='tight')
...