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How to use a variable inside a regular expression?
...double curly braces. Let's say you want to match TEXTO followed by exactly 2 digits:
if re.search(rf"\b(?=\w){re.escape(TEXTO)}\d{{2}}\b(?!\w)", subject, re.IGNORECASE):
print("match")
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Convert to binary and keep leading zeros in Python
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225
Use the format() function:
>>> format(14, '#010b')
'0b00001110'
The format() funct...
Convert camelCaseText to Sentence Case Text
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20 Answers
20
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Add object to ArrayList at specified index
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211
You can do it like this:
list.add(1, object1)
list.add(2, object3)
list.add(2, object2)
Aft...
What is a “surrogate pair” in Java?
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answered May 5 '11 at 19:28
Jeffrey L WhitledgeJeffrey L Whitledge
51.2k99 gold badges6363 silver badges9595 bronze badges
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Why can a function modify some arguments as perceived by the caller, but not others?
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219
Some answers contain the word "copy" in a context of a function call. I find it confusing.
Py...
How to get cumulative sum
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230
select t1.id, t1.SomeNumt, SUM(t2.SomeNumt) as sum
from @t t1
inner join @t t2 on t1.id >= ...
Draw a perfect circle from user's touch
...port java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.HeadlessException;
import java.awt.Point;
import java.awt.RenderingHints;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;
import java.util....
How to check that a string is an int, but not a double, etc.?
...f it's wrong. PHP has is_int() , but that returns false for string like "2" .
26 Answers
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Python csv string to array
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266
You can convert a string to a file object using io.StringIO and then pass that to the csv modu...