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Detect if a NumPy array contains at least one non-numeric value?
I need to write a function which will detect if the input contains at least one value which is non-numeric. If a non-numeric value is found I will raise an error (because the calculation should only return a numeric value). The number of dimensions of the input array is not known in advance - the fu...
How can we programmatically detect which iOS version is device running on? [duplicate]
I want to check if the user is running the app on iOS less than 5.0 and display a label in the app.
10 Answers
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How to determine if a string is a number with C++?
I've had quite a bit of trouble trying to write a function that checks if a string is a number. For a game I am writing I just need to check if a line from the file I am reading is a number or not (I will know if it is a parameter this way). I wrote the below function which I believe was working s...
MongoDB atomic “findOrCreate”: findOne, insert if nonexistent, but do not update
...the title says, I want to perform a find (one) for a document, by _id, and if doesn't exist, have it created, then whether it was found or was created, have it returned in the callback.
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Do checkbox inputs only post data if they're checked?
...standard behaviour for browsers to only send the checkbox input value data if it is checked upon form submission?
12 Answer...
Check if string begins with something? [duplicate]
I know that I can do like ^= to see if an id starts with something, and I tried using that for this, but it didn't work... Basically, I'm retrieving the url and I want to set a class for an element for pathnames that start in a certain way...
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Twig ternary operator, Shorthand if-then-else
Does Twig support ternary (shorthand if-else) operator?
3 Answers
3
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jQuery: checking if the value of a field is null (empty)
Is this a good way to check if the value of a field is null ?
7 Answers
7
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How to increment datetime by custom months in python without using library [duplicate]
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Edit - based on your comment of dates being needed to be rounded down if there are fewer days in the next month, here is a solution:
import datetime
import calendar
def add_months(sourcedate, months):
month = sourcedate.month - 1 + months
year = sourcedate.year + month // 12
month...
How to cast an Object to an int
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If you're sure that this object is an Integer :
int i = (Integer) object;
Or, starting from Java 7, you can equivalently write:
int i = (int) object;
Beware, it can throw a ClassCastException if your object isn't an Int...