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Why use Ruby's attr_accessor, attr_reader and attr_writer?
...tten assuming that age, once set, does not change, then a bug could result from code calling that mutator.
But what is happening behind the scenes?
If you write:
attr_writer :age
That gets translated into:
def age=(value)
@age = value
end
If you write:
attr_reader :age
That gets transla...
Scanner vs. BufferedReader
As far I know, the two most common methods of reading character-based data from a file in Java is using Scanner or BufferedReader . I also know that the BufferedReader reads files efficiently by using a buffer to avoid physical disk operations.
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Can one AngularJS controller call another?
... Coming to this late: you guys do know you are arguing with THE Vojta from Google who works on AngularJS, right? :)
– Suman
Mar 20 '14 at 20:54
16
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Serving gzipped CSS and JavaScript from Amazon CloudFront via S3
... the highest compression level (assuming gzip -9).
You're serving the file from a CDN.
Assuming that your CSS/JavaScript files are (a) minified and (b) large enough to justify the CPU required to decompress on the user's machine, you can get significant performance gains here.
Just remember: If y...
ImportError: Cannot import name X
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You have circular dependent imports. physics.py is imported from entity before class Ent is defined and physics tries to import entity that is already initializing. Remove the dependency to physics from entity module.
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How to remove item from list in C#?
...
Short answer:
Remove (from list results)
results.RemoveAll(r => r.ID == 2); will remove the item with ID 2 in results (in place).
Filter (without removing from original list results):
var filtered = result.Where(f => f.ID != 2); returns all ...
getResourceAsStream returns null
I'm loading a text file from within a package in a compiled JAR of my Java project. The relevant directory structure is as follows:
...
Javascript calculate the day of the year (1 - 366)
How do I use javascript to calculate the day of the year, from 1 - 366? For example:
22 Answers
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Disallow Twitter Bootstrap modal window from closing
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Check answer from @@Varun Chatterji and include this on your modal definition
– Leandro
May 26 '14 at 13:21
1
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What is more efficient? Using pow to square or just multiply it with itself?
...second parameter to pow is an int, then the std::pow(double, int) overload from <cmath> will be called instead of ::pow(double, double) from <math.h>.
This test code confirms that behavior:
#include <iostream>
namespace foo
{
double bar(double x, int i)
{
std::c...