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C# getting the path of %AppData%
...ent.GetFolderPath(Environment.SpecialFolder.ApplicationData) returns empty string for me (IIS 7, VS 2011). Problem solved using Simon_Weaver solution - mapping using MapPath.
– Mike Keskinov
May 21 '12 at 19:16
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Which characters make a URL invalid?
...
Here's a regex that will determine if the entire string contains only the characters above: /^[!#$&-;=?-[]_a-z~]+$/
– Leif Wickland
Oct 7 '11 at 17:01
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Interfaces with static fields in java for sharing 'constants'
...ittenConstants
{
private KittenConstants() {}
public static final String KITTEN_SOUND = "meow";
public static final double KITTEN_CUTENESS_FACTOR = 1;
}
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TreeMap sort by value
...);
return sortedEntries;
}
Now you can do the following:
Map<String,Integer> map = new TreeMap<String,Integer>();
map.put("A", 3);
map.put("B", 2);
map.put("C", 1);
System.out.println(map);
// prints "{A=3, B=2, C=1}"
System.out.println(entriesSorte...
Why use the 'ref' keyword when passing an object?
... useful too if you want to change the value of an immutable object, e.g. a string. You cannot change the value of a string once it has been created. But by using a ref, you could create a function that changes the string for another one that has a different value.
It is not a good idea to use ref un...
Write string to text file and ensure it always overwrites the existing content.
I have a string with a C# program that I want to write to a file and always overwrite the existing content. If the file isn't there, the program should create a new file instead of throwing an exception.
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What's an elegant way to conditionally add a class to an HTML element in a view?
...classes mixed with default classes, then you need to put that logic into a string interpolation or ERB tag.
Here's an updated approach that avoids putting any logic into the views:
<div class="<%= class_string(ok: @success) %>">
some message here
</div>
class_string method
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Placeholder in IE9
...can use the code below:
(function(){
"use strict";
//shim for String's trim function..
function trim(string){
return string.trim ? string.trim() : string.replace(/^\s+|\s+$/g, "");
}
//returns whether the given element has the given class name..
function ha...
Filter rows which contain a certain string
...filter a data frame using as criterion those row in which is contained the string RTB .
4 Answers
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What's valid and what's not in a URI query?
...= *( pchar / "/" / "?" )
Thus commas are explicitly allowed within query strings and only need to be escaped in data if specific schemes define it as a delimiter. The HTTP scheme doesn't use the comma or semi-colon as a delimiter in query strings, so they don't need to be escaped. Whether browsers...