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How to validate an email address in JavaScript
...@(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+(?:[A-Z]{2}|com|org|net|gov|mil|biz|info|mobi|name|aero|jobs|museum)\b
So even when following official standards, there are still trade-offs to be made. Don't blindly copy regular expressions from online libraries or discussion forums. Always test them on your ...
What's the advantage of a Java enum versus a class with public static final fields?
...I posted this 4.5 yrs ago, and at least a few people found it provided new info ¯_(ツ)_/¯
– Dave Newton
Jul 9 '17 at 17:09
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iPhone and OpenCV
I know that OpenCV was ported to Mac OS X , however I did not find any info about a port to the iPhone.
13 Answers
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What is the purpose of the var keyword and when should I use it (or omit it)?
...ed by a with statement, like so:
with (window) {
//Your code
}
More info on with - MDN
Since var declares a variable in the current scope , there is no difference between declaring var inside window and not declaring it at all.
The difference comes when you're not directly inside the window...
What is an 'endpoint' in Flask?
... that you might go about creating a view, it actually abstracts some extra info from you. Behind the scenes, Flask did not make the leap directly from URL to the view function that should handle this request. It does not simply say...
URL (http://www.example.org/greeting/Mark) should be handled by ...
How to implement one-to-one, one-to-many and many-to-many relationships while designing tables?
... but here primary key relating to multiple records (i.e. Table A have book info and Table B have multiple publishers of one book).
Many to Many (M-M): Many to many includes two dimensions, explained fully as below with sample.
-- This table will hold our phone calls.
CREATE TABLE dbo.PhoneCalls
(
...
What database does Google use?
...
I was looking for info about the compression algorithms (BMDiff and Zippy) and found that now Zippy is called Snappy and it's published in Google Code: code.google.com/p/snappy
– helios
Jul 28 '11 at 7:33...
What is the difference between “int” and “uint” / “long” and “ulong”?
...nterface if you wish to be CLS-Compliant.
Read the documentation for more information:
int
uint
long
ulong
By the way, there is also short and ushort and byte and sbyte.
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jQuery: Test if checkbox is NOT checked
... ($(this).prop('checked')==true){
//do something
}
});
More info:
This works well because all checkboxes have a property checked which stores the actual state of the checkbox. If you wish you can inspect the page and try to check and uncheck a checkbox, and you will notice the attrib...
How to load/edit/run/save text files (.py) into an IPython notebook cell?
...s been renamed simply into %load. You can look at %load docstring for more info."
– michael
May 26 '17 at 23:05
Would ...