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How do I validate a date string format in python?
...on dateutil library is designed for this (and more). It will automatically convert this to a datetime object for you and raise a ValueError if it can't.
As an example:
>>> from dateutil.parser import parse
>>> parse("2003-09-25")
datetime.datetime(2003, 9, 25, 0, 0)
This raises...
Difference between fold and reduce?
... will have to be a number. To implement the previous sample, you'd have to convert the numbers to string first and then accumulate:
[1 .. 10] |> List.map string
|> List.reduce (fun s1 s2 -> s1 + "," + s2)
...
“Thinking in AngularJS” if I have a jQuery background? [closed]
...
Imperative → declarative
In jQuery, selectors are used to find DOM elements and then bind/register event handlers to them. When an event triggers, that (imperative) code executes to update/change the DOM.
In AngularJS, you want to think about views rather than...
Why is using a wild card with a Java import statement bad?
... imports is very rare.
Furthermore, most modern IDEs will
allow you to convert the wildcarded
imports to a list of specific imports
with a single command. So even in the
legacy case it’s better to import
wildcards.
Wildcard imports can sometimes cause
name conflicts and ambiguit...
How to get year, month, day, hours, minutes, seconds and milliseconds of the current moment in Java?
... millis);
Either way, this prints as of now:
2010-04-16 15:15:17.816
To convert an int to String, make use of String#valueOf().
If your intent is after all to arrange and display them in a human friendly string format, then better use either Java8's java.time.format.DateTimeFormatter (tutorial h...
Why use non-member begin and end functions in C++11?
...sn't a use for it. Pointers are pointers, arrays are arrays. Arrays can be converted to a pointer to their first element implicitly, but the is still just a regular old pointer, with no distinction with others. Of course you can't get the "end" of a pointer, case closed.
– GMan...
What is the benefit of using Fragments in Android, rather than Views?
...ts come little late so you must try to think in new way.
Maybe just try to convert your activity to FragmentActivity. Later try to find reusable code and make Fragment from it.
Its usefull but i dont know how right now. But i have some ideas.
This is always problem. Android Team made somethink and...
Simple argparse example wanted: 1 argument, 3 results
...attr(args, 'foo-bar'))
The thing that threw me off is that argparse will convert the named argument "--foo-bar" into "foo_bar", but a positional parameter named "foo-bar" stays as "foo-bar", making it less obvious how to use it in your program.
Notice the two lines near the end of my example -- ...
How do you configure logging in Hibernate 4 to use SLF4J
...u are still getting "raw" console stdout Hibernate output (like Hibernate: select ...), then Stack Overflow question " Turn off hibernate logging to console " may apply.
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Is floating-point math consistent in C#? Can it be?
...ation:
expand inputs to double precision
do operation in double precision
convert result back to single precision
The big issue with x87 is that calculations might be done in 53-bit or 64-bit accuracy depending on the precision flag and whether the register spilled to memory. But for many opera...