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Difference between \A \z and ^ $ in Ruby regular expressions
...me or email beforehand, since there's pretty much no legitimate reason for one. Then you can safely use EITHER \A \z or ^ $.
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What to learn for making Java web applications in Java EE 6? [closed]
...u want. There might be more focused books in the future but this is a good one.
– Pascal Thivent
Dec 25 '09 at 7:17
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what is the difference between OLE DB and ODBC data sources?
...s not the case - the original diagram must have been correct (and not this one).
– Danny Varod
Jul 18 '11 at 15:52
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What is the meaning and difference between subject, user and principal?
...plication you are the subject and the application is the object. When someone knocks on your door the visitor is the subject requesting access and your home is the object access is requested of.
Principal - A subset of subject that is represented by an account, role or other unique identifier. Whe...
What does enctype='multipart/form-data' mean?
...-urlencoded (the default)
multipart/form-data
text/plain
Work was being done on adding application/json, but that has been abandoned.
(Other encodings are possible with HTTP requests generated using other means than an HTML form submission. JSON is a common format for use with web services and so...
What is the difference between a weak reference and an unowned reference?
...== CreditCard
The Customer and CreditCard example shows a situation where one property that is allowed to be nil and another property that cannot be nil has the potential to cause a strong reference cycle. This scenario is best resolved with an unowned reference.
Note from Apple:
Weak references m...
Why use jQuery on() instead of click()
...ick', function() { // code
});
In the sense that it only add the handler one time to all elements with class elementClass. If you have a new elementClass coming from, for example $('<div class="elementClass" />'), the handler won't be bound on that new element, you need to do:
$('#container...
How do I right align controls in a StatusStrip?
...tatusStrip.LayoutStyle == ToolStripLayoutStyle.Table (which is the default one)
– AZ.
Jul 31 '12 at 22:32
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Count number of rows within each group
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I have done it, but it seems that I get 2 times each column except the one that is aggregated; so I have done a merge on them and it seems to be ok
– sop
May 18 '15 at 7:20
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How can I tell when HttpClient has timed out?
... @testing They don't behave different. It is just that you have one token that will represent the user cancellation request and an internal (you cannot access and you don't need) that represents the client timeout. It is the use case that differs
– Sir Rufo
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