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Can I use a :before or :after pseudo-element on an input field?
...the :after CSS pseudo-element on an input field, but it does not work. If I use it with a span , it works OK.
19 Answ...
What do querySelectorAll and getElementsBy* methods return?
...e unique and thus the function always returns exactly one element (or null if none was found).
However, getElementsByClassName(), querySelectorAll(), and other getElementsBy* methods return an array-like collection of elements. Iterate over it like you would with a real array:
var elems = document...
How to strip leading “./” in unix “find”?
...
If they're only in the current directory
find * -type f -print
Is that what you want?
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Ruby 'require' error: cannot load such file
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Just do this:
require_relative 'tokenizer'
If you put this in a Ruby file that is in the same directory as tokenizer.rb, it will work fine no matter what your current working directory (CWD) is.
Explanation of why this is the best way
The other answers claim you sho...
How to remove leading and trailing white spaces from a given html string?
...regex approach. The trim method is effectively just an alias for a regex:
if(!String.prototype.trim) {
String.prototype.trim = function () {
return this.replace(/^\s+|\s+$/g,'');
};
}
... this will inject the method into the native prototype for those browsers who are still swimm...
How to initialize log4j properly?
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Will cause log4j to look for a file called customName on the classpath.
If you are having problems I find it helpful to turn on the log4j.debug:
-Dlog4j.debug
It will print to System.out lots of helpful information about which file it used to initialize itself, which loggers / appenders got co...
Ruby function to remove all white spaces?
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If you want to remove only leading and trailing whitespace (like PHP's trim) you can use .strip, but if you want to remove all whitespace, you can use .gsub(/\s+/, "") instead .
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window.onload vs $(document).ready()
What are the differences between JavaScript's window.onload and jQuery's $(document).ready() method?
16 Answers
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Unable to add window — token android.os.BinderProxy is not valid; is your activity running?
...re showing the dialog for a context that no longer exists. A common case - if the 'show dialog' operation is after an asynchronous operation, and during that operation the original activity (that is to be the parent of your dialog) is destroyed. For a good description, see this blog post and comment...
Getting RAW Soap Data from a Web Reference Client running in ASP.net
...on/off for debugging purposes. Here is an example that I have found and modified for my own use, in my case the logging was done by log4net but you can replace the log methods with your own.
public class SoapLoggerExtension : SoapExtension
{
private static readonly ILog log = LogManager.GetLogg...