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How to Update Multiple Array Elements in mongodb
...1243
As a work around you can:
Update each item individually
(events.0.handled events.1.handled
...) or...
Read the document, do the edits
manually and save it replacing the
older one (check "Update if
Current" if you want to ensure
atomic updates)
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How to change the output color of echo in Linux
I am trying to print a text in the terminal using echo command.
30 Answers
30
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Is it safe to check floating point values for equality to 0?
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It is safe to expect that the comparison will return true if and only if the double variable has a value of exactly 0.0 (which in your original code snippet is, of course, the case). This is consistent with the semantics of the == operator. a == b means "a is equal to b".
It is not sa...
Regex for password must contain at least eight characters, at least one number and both lower and up
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Minimum eight characters, at least one letter and one number:
"^(?=.*[A-Za-z])(?=.*\d)[A-Za-z\d]{8,}$"
Minimum eight characters, at least one letter, one number and one special character:
"^(?=.*[A-Za-z])(?=.*\d)(?=.*[@$!%*#?&])[A-Za-z\d@$!%*#?&]{8,}$"
Mini...
Python str vs unicode types
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unicode is meant to handle text. Text is a sequence of code points which may be bigger than a single byte. Text can be encoded in a specific encoding to represent the text as raw bytes(e.g. utf-8, latin-1...).
Note that unicode is not encoded! T...
How to calculate time elapsed in bash script?
I print the start and end time using date +"%T" , which results in something like:
20 Answers
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Failed to Attach to Process ID Xcode
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Resetting the content and settings in the simulator worked for me. This is available in the "iOS Simulator" menu.
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What does a tilde do when it precedes an expression?
I saw it in an answer, and I've never seen it before.
5 Answers
5
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What is the maximum length of latitude and longitude? [closed]
How long can latitude and longitude be?
7 Answers
7
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Difference between exit(0) and exit(1) in Python
What's the difference between exit(0) and exit(1) in Python?
5 Answers
5
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