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JavaScript style for optional callbacks
I have some functions which occasionally (not always) will receive a callback and run it. Is checking if the callback is defined/function a good style or is there a better way?
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Convert bytes to a string
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You need to decode the bytes object to produce a string:
>>> b"abcde"
b'abcde'
# utf-8 is used here because it is a very common encoding, but you
# need to use the encoding your data is actually in.
>>> b"abcde".decode("utf-8") ...
Converting a view to Bitmap without displaying it in Android?
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there is a way to do this. you have to create a Bitmap and a Canvas and call view.draw(canvas);
here is the code:
public static Bitmap loadBitmapFromView(View v) {
Bitmap b = Bitmap.createBitmap( v.getLayoutParams().width, v.getLayoutParams().height, Bitmap.Config.AR...
How to remove the lines which appear on file B from another file A?
... (consisting of emails), one line for each mail. I also have another file B that contains another set of mails.
9 Answers...
How do I merge a list of dicts into a single dict?
...for d in L:
... result.update(d)
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>>> result
{'a':1,'c':1,'b':2,'d':2}
As a comprehension:
# Python >= 2.7
{k: v for d in L for k, v in d.items()}
# Python < 2.7
dict(pair for d in L for pair in d.items())
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Why is it OK to return a 'vector' from a function?
...this type of code several times. words is a local vector. How is it possible to return it from a function?
6 Answers
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Convert string to integer type in Go?
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peterSOpeterSO
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Assign same value to multiple variables at once?
How can I assign the same value for multiple variables in PHP at once ?
2 Answers
2
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Can you write nested functions in JavaScript?
...ng a function within another function, or nested functions (I read it in a blog). Is this really possible?. In fact, I have used these but am unsure of this concept. I am really unclear on this -- please help!
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Is there “0b” or something similar to represent a binary number in Javascript
I know that 0x is a prefix for hexadecimal numbers in Javascript. For example, 0xFF stands for the number 255.
10 Answe...