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Regular expression to match numbers with or without commas and decimals in text
...decimal part
#Pass: (1), (0.1)
#Fail: (1.00), (0.1000)
^\d+(\.\d*[1-9])?$
Now that that's out of the way, most of the following is meant as commentary on how complex regex can get if you try to be clever with it, and why you should seek alternatives. Read at your own risk.
This is a very common ta...
How to read the RGB value of a given pixel in Python?
...nately installing PIL is very straightforward in Linux and Windows (don't know about Mac)
– heltonbiker
Sep 28 '11 at 16:20
6
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How to switch position of two items in a Python list?
...The simple Python swap looks like this:
foo[i], foo[j] = foo[j], foo[i]
Now all you need to do is figure what i is, and that can easily be done with index:
i = foo.index("password2")
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im...
What is Bit Masking?
...ou could first do the mask, then the shift. The results are the same, but now you would have to use a different mask:
uint32_t byte3 = (value & 0xff00) >> 8;
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improve this answer...
Test if executable exists in Python?
... write it (I admit my formulation was not clear enough in the fact that I know what which does).
– Piotr Lesnicki
Dec 18 '08 at 12:48
1
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change type of input field with jQuery
...nted as part of the browser's security model.
Edit: indeed, testing right now in Safari, I get the error type property cannot be changed.
Edit 2: that seems to be an error straight out of jQuery. Using the following straight DOM code works just fine:
var pass = document.createElement('input');
pa...
Error 1046 No database Selected, how to resolve?
... in SQL file. Can you please clarify that once more. I am having the issue now.
– Rahul S
Jul 15 '15 at 5:02
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Is there any way to ignore INSTALL_FAILED_VERSION_DOWNGRADE on application install with the Android
...
And it seems to be documented now! Just not that you have to use -r -d, -rd will not work
– plaisthos
Jan 8 '16 at 12:44
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What is default color for text in textview?
...nd after that I want to set the color again back to default, but I do not know what is default color, does anyone knows ?
1...
How to print a dictionary line by line in Python?
...
I know this is old, but I thought it would be worth mentioning that this doesn't work if cars[x] is integers. It isn't what the OP was requesting, so I'm just saying it for anybody that stumbles upon this assuming it's a blanket...