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C# string reference type?
...nce by value and passing an object by reference. It's unfortunate that the word "reference" is used in both cases.
If you do pass the string reference by reference, it will work as you expect:
using System;
class Test
{
public static void Main()
{
string test = "before passing";
...
What's the state of the art in email validation for Rails?
...MAIL_ADDRESS_DOMAIN_REF}|#{EMAIL_ADDRESS_DOMAIN_LITERAL})"
EMAIL_ADDRESS_WORD = "(?:#{EMAIL_ADDRESS_ATOM}|#{EMAIL_ADDRESS_QUOTED_STRING})"
EMAIL_ADDRESS_DOMAIN = "#{EMAIL_ADDRESS_SUB_DOMAIN}(?:\\x2e#{EMAIL_ADDRESS_SUB_DOMAIN})*"
EMAIL_ADDRESS_LOCAL_PART = "#{EMAIL_ADDR...
jQuery: select all elements of a given class, except for a particular Id
...g examples to remove items that have an exact id, id containing a specific word, id starting with a word, etc... see http://www.w3schools.com/jquery/jquery_ref_selectors.asp for more information on jQuery selectors.
Ignore by Exact ID:
$(".thisClass").not('[id="thisId"]').doAction();
Ignore ID'...
PhpStorm wrap/surround selection?
...y and takes some learning curve.
It's very common behaviour that select a word and type single quote (or double quote) to surround it.
Hello World
'Hello World'
"Hello World"
To enable this, tick on checkbox of Preferences -> IDE -> Editor -> Smart Keys -> Surround Selection on typin...
Does Python have a string 'contains' substring method?
... with find, index, and in though, as they are substring searches. In other words, this:
s = "This be a string"
if s.find("is") == -1:
print("No 'is' here!")
else:
print("Found 'is' in the string.")
It would print Found 'is' in the string. Similarly, if "is" in s: would evaluate to True. T...
What are the First and Second Level caches in Hibernate?
Can anyone explain in simple words what First and Second Level caching in Hibernate are?
7 Answers
...
What would cause an algorithm to have O(log n) complexity?
...most 1, we get
n / 2i ≤ 1
n ≤ 2i
log2 n ≤ i
In other words, if we pick an integer i such that i ≥ log2 n, then after dividing n in half i times we'll have a value that is at most 1. The smallest i for which this is guaranteed is roughly log2 n, so if we have an algorithm tha...
Force TextBlock to wrap in WPF ListBox
... the right of the avatar. The layout is fine until the message text should word wrap, but instead I get a horizontal scroll bar on the listbox.
...
php Replacing multiple spaces with a single space [duplicate]
...nce:
\d, \w and \s
Shorthand character classes matching
digits, word characters (letters,
digits, and underscores), and
whitespace (spaces, tabs, and line
breaks). Can be used inside and
outside character classes.
...
Python - Count elements in list [duplicate]
...gt;>> mylist = [1,2,3] #list
>>> len(mylist)
3
>>> word = 'hello' # string
>>> len(word)
5
>>> vals = {'a':1,'b':2} #dictionary
>>> len(vals)
2
>>> tup = (4,5,6) # tuple
>>> len(tup)
3
To learn Python you can use byte of python...