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What Automatic Resource Management alternatives exist for Scala?
...xpression:
import resource._
for(input <- managed(new FileInputStream("test.txt")) {
// Code that uses the input as a FileInputStream
}
2) Monadic-style
import resource._
import java.io._
val lines = for { input <- managed(new FileInputStream("test.txt"))
val bufferedRead...
What's the best way to detect a 'touch screen' device using JavaScript?
...
Modernizr does not test for touch screens. It tests for the existence of touch events in the browser. See the "Misc Tests" section in the docs: modernizr.com/docs/#features-misc
– Harry Love
Jan 24 '12 at ...
Random “Element is no longer attached to the DOM” StaleElementReferenceException
...'re having problems with StaleElementReferenceExceptions it's because your tests are poorly written. It's a race condition. Consider the following scenario:
WebElement element = driver.findElement(By.id("foo"));
// DOM changes - page is refreshed, or element is removed and re-added
element.click();...
How to rethrow InnerException without losing stack trace in C#?
...ctManager calls SetObjectData
// voila, e is unmodified save for _remoteStackTraceString
}
This wastes a lot of cycles compared to calling InternalPreserveStackTrace via cached delegate, but has the advantage of relying only on public functionality. Here are a couple of common usage patterns ...
UIButton: Making the hit area larger than the default hit area
...th minimal code.
First, add a category to UIButton that overrides the hit test and also adds a property for expanding the hit test frame.
UIButton+Extensions.h
@interface UIButton (Extensions)
@property(nonatomic, assign) UIEdgeInsets hitTestEdgeInsets;
@end
UIButton+Extensions.m
#import "UI...
How can I check if string contains characters & whitespace, not just whitespace?
...heck to see if there's at least one character of non whitespace:
if (/\S/.test(myString)) {
// string is not empty and not just whitespace
}
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Extract hostname name from string
...(url)); // returns youtube.com
I can't use an npm package, so below only tests extractHostname.
function extractHostname(url) {
var hostname;
//find & remove protocol (http, ftp, etc.) and get hostname
if (url.indexOf("//") > -1) {
hostname = url.split('/')[2]...
How can I get a list of locally installed Python modules?
...
Steps to reproduce:
Create a virtual environment
$ cd /tmp
$ virtualenv test_env
New python executable in test_env/bin/python
Installing setuptools, pip...done.
$ source test_env/bin/activate
(test_env) $
Clone a git repo with setup.py
(test_env) $ git clone https://github.com/behave/behave.g...
Difference between new and override
...c string Foo()
{
return "A";
}
public virtual string Test()
{
return "base test";
}
}
class B: A
{
public new string Foo()
{
return "B";
}
}
class C: B
{
public string Foo()
{
return "C";
}
public override string...
Dealing with commas in a CSV file
... including embedded quotes and carriage returns.
By the way, this is unit-tested code. I’m posting it now because this question seems to come up a lot and others may not want an entire library when simple CSV support will do.
You can use it as follows:
using System;
public class test
{
p...