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PHP Regex to get youtube video ID?
...ally for what you are trying to accomplish, use those.)
parse_url takes a string and cuts it up into an array that has a bunch of info. You can work with this array, or you can specify the one item you want as a second argument. In this case we're interested in the query, which is PHP_URL_QUERY.
N...
How can I get the current stack trace in Java?
... A cool one-liner if you're already using apache commons to get a string: String fullStackTrace = org.apache.commons.lang.exception.ExceptionUtils.getFullStackTrace(e); stackoverflow.com/a/10620951/11236
– ripper234
May 26 '13 at 12:50
...
How can I convert ereg expressions to preg in PHP?
...$str);
You can easily escape all delimiters and reserved characters in a string by using preg_quote:
$expr = preg_quote('/hello', '/');
preg_match('/^'.$expr.'/', $str);
Also, PCRE supports modifiers for various things. One of the most used is the case-insensitive modifier i, the alternative to...
Adding placeholder text to textbox
...t = "";
}
}
public void AddText(object sender, EventArgs e)
{
if (string.IsNullOrWhiteSpace(myTxtbx.Text))
myTxtbx.Text = "Enter text here...";
}
Thats just pseudocode but the concept is there.
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How to dismiss keyboard for UITextView with return key?
...tView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text {
if([text isEqualToString:@"\n"]) {
[textView resignFirstResponder];
return NO;
}
return YES;
}
Swift 4.0 update:
func textView(_ textView: UITextView, shouldChangeTextIn range:...
In Hibernate Validator 4.1+, what is the difference between @NotNull, @NotEmpty, and @NotBlank?
...ollection, Map or Array object is not null and size > 0.
@NotBlank: The string is not null and the trimmed length is greater than zero.
To help you understand, let's look into how these constraints are defined and carried out (I'm using version 4.1):
The @NotNull constraint is defined as: ...
Group by in LINQ
...Collections.Generic;
class Person
{
public int PersonId;
public string car ;
}
class Result
{
public int PersonId;
public List<string> Cars;
}
public class Program
{
public static void Main()
{
List<Person> persons = new List<Person>()
...
Read Post Data submitted to ASP.Net Form
...d process your logic accordingly:
NameValueCollection nvc = Request.Form;
string userName, password;
if (!string.IsNullOrEmpty(nvc["txtUserName"]))
{
userName = nvc["txtUserName"];
}
if (!string.IsNullOrEmpty(nvc["txtPassword"]))
{
password = nvc["txtPassword"];
}
//Process login
CheckLogin(u...
How to dynamically load a Python class
Given a string of a Python class, e.g. my_package.my_module.MyClass , what is the best possible way to load it?
10 Answers...
How to check if a variable is not null?
... are the following (a.k.a. falsy values):
null
undefined
0
"" (the empty string)
false
NaN
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