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Check that an email address is valid on iOS [duplicate]
...rict - http://blog.logichigh.com/2010/09/02/validating-an-e-mail-address/
And because categories are just better, you could also add an interface:
@interface NSString (emailValidation)
- (BOOL)isValidEmail;
@end
Implement
@implementation NSString (emailValidation)
-(BOOL)isValidEmail
{
BOO...
'\r': command not found - .bashrc / .bash_profile [duplicate]
...
When all else fails in Cygwin...
Try running the dos2unix command on the file in question.
It might help when you see error messages like this:
-bash: '\r': command not found
Windows style newline characters can cause issues in Cygwin.
The dos2unix command modifies newline characte...
How do you run a SQL Server query from PowerShell?
...
For others who need to do this with just stock .NET and PowerShell (no additional SQL tools installed) here is the function that I use:
function Invoke-SQL {
param(
[string] $dataSource = ".\SQLEXPRESS",
[string] $database = "MasterData",
[string] $...
How to filter Pandas dataframe using 'in' and 'not in' like in SQL
How can I achieve the equivalents of SQL's IN and NOT IN ?
9 Answers
9
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How do I create an HTML table with a fixed/frozen left column and a scrollable body?
... columns scroll horizontally, you can position: absolute the first column (and specify its width explicitly), and then wrap the entire table in an overflow-x: scroll block. Don't bother trying this in IE7, however...
Relevant HTML & CSS:
table {
border-collapse: separate;
border-sp...
How can I initialise a static Map?
...ght? I don't see why you need an extra anonymous class just to initialize. And it won't work if the class being created is final.
You can create an immutable map using a static initialiser too:
public class Test {
private static final Map<Integer, String> myMap;
static {
Map&...
jQuery .data() does not work, but .attr() does
...e doc loads, I loop some elements that originally have data-itemname="" , and I set those values using .attr("data-itemname", "someValue") .
...
What is meant by immutable?
...nterface is immutable but behind the scenes actual mutables private state (and therefore can't be shared safely between threads).
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Check if an array contains any element of another array in JavaScript
I have a target array ["apple","banana","orange"] , and I want to check if other arrays contain any one of the target array elements.
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How to get a key in a JavaScript object by its value?
...allowing me to get the key for a value, or do I have to iterate the object and find it out manually?
27 Answers
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