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What is the minimum length of a valid international phone number?
I need to validate user input of an international phone number. According to E.164 , the maximum length is 15 digits, but I was unable to find any information about the minimum. I consider digits only, no plus sign or separators.
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wildcard ssl on sub-subdomain [closed]
we have wildcard ssl certificate for *.domain.com, and have a website with sub1.sub2.domain.com
3 Answers
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Ruby on Rails: How do I add a not null constraint to an existing column using a migration?
In my Rails (3.2) app, I have a bunch of tables in my database but I forgot to add a few not null constraints. I've googled around but I can't find how to write a migration which adds not null to an existing column.
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Node.js vs .Net performance
... and able to accommodate large amounts of load. Does anyone have any real world evidence of this vs other frameworks, particularly .Net? Most of the articles i've read are anecdotal or don't have comparisons to .Net.
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How does JavaScript handle AJAX responses in the background?
...s, it pulls it off the queue and triggers that event (like a mouse click, for example).
The native code networking that lies under the ajax call will know when the ajax response is done and an event will get added to the javascript event queue. How the native code knows when the ajax call is done ...
How to convert FileInputStream to InputStream? [closed]
...nd then close it. You can wrap the FileInputStream in another InputStream (or Reader). It will be automatically closed when you close the wrapping stream/reader.
If this is a method returning an InputStream to the caller, then it is the caller's responsibility to close the stream when finished with...
Spring MVC @PathVariable with dot (.) is getting truncated
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As far as i know this issue appears only for the pathvariable at the end of the requestmapping.
We were able to solve that by defining the regex addon in the requestmapping.
/somepath/{variable:.+}
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Does the 'mutable' keyword have any purpose other than allowing the variable to be modified by a con
... some code that marked a member variable of a class with the mutable keyword. As far as I can see it simply allows you to modify a variable in a const method:
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How to get the current time in Python
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Use:
>>> import datetime
>>> datetime.datetime.now()
datetime.datetime(2009, 1, 6, 15, 8, 24, 78915)
>>> print(datetime.datetime.now())
2009-01-06 15:08:24.789150
And just the time:
>>> datetime.datetime.no...
Clojure: cons (seq) vs. conj (list)
...ap as soon as it grows beyond 9 entries.)
1 Traditionally, in the Lisp world, cons cons(tructs a pair), so Clojure departs from the Lisp tradition in having its cons function construct a seq which doesn't have a traditional cdr. The generalised usage of cons to mean "construct a record of some ty...