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Handle file download from ajax post
...or it might be a file (as an attachment). I can easily detect Content-Type and Content-Disposition in my ajax call, but once I detect that the response contains a file, how do I offer the client to download it? I've read a number of similar threads here but none of them provide the answer I'm lookin...
When do you use varargs in Java?
...at("This is an integer: %d", myInt);
String.format("This is an integer: %d and a string: %s", myInt, myString);
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When is finally run if you throw an exception from the catch block?
...is the finally block called? Before the throwing of e or is finally called and then catch?
7 Answers
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The conversion of a datetime2 data type to a datetime data type resulted in an out-of-range value
...bject that has only been populated with data in the form (headline, story, and image). ApplyPropertyChanges applies changes to all properties of the object, including your uninitialized DateTime, which is set to 0001-01-01, which is outside of the range of SQL Server's DATETIME.
Rather than using ...
Defining a percentage width for a LinearLayout? [duplicate]
...0%) for a LinearLayout that contains some buttons, so that I can center it and so that the child buttons can fill_parent. Here's a picture showing what I mean:
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findViewByID returns null
First of all: yes, I read all the other threads on this topic. And not only those from this site... (you see, I'm a little frustrated)
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Should __init__() call the parent class's __init__()?
...cessary, since the super method is empty. Same for __del__.
On the other hand, for __new__, you should indeed call the super method, and use its return as the newly-created object - unless you explicitly want to return something different.
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Efficient evaluation of a function at every cell of a NumPy array
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You could just vectorize the function and then apply it directly to a Numpy array each time you need it:
import numpy as np
def f(x):
return x * x + 3 * x - 2 if x > 0 else x * 5 + 8
f = np.vectorize(f) # or use a different name if you want to keep the...
A regex to match a substring that isn't followed by a certain other substring
...-----------------------------------------
( group and capture to \1:
--------------------------------------------------------------------------------
\w+ word characters (a-z, A-Z, 0-9, _) (1 or
more times (matching the m...
扩展App Inventor：具有多点触控和手势检测功能 · App Inventor 2 中文网
...@mit.edu)
Hal Abelson (hal@mit.edu)
Department of Electrical Engineering and Computer Science
Massachusetts Institute of Technology
77 Massachusetts Avenue, Cambridge, MA 02139, USA
ABSTRACT
MIT App Inventor is a block-based event-driven programming tool that allows everyone, especially novice...