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Generate list of all possible permutations of a string
...about generating a list of all possible permutations of a string between x and y characters in length, containing a variable list of characters.
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Why use jQuery on() instead of click()
... example coming from an AJAX call), you might want to have the same click handler that was previously bound to the same element selector, you then "delegate" the click event using on() with selector argument
To demonstrate:
http://jsfiddle.net/AJRw3/
on() can also be synonymous with click() if yo...
Generate a random date between two other dates
How would I generate a random date that has to be between two other given dates?
26 Answers
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Troubleshooting “Illegal mix of collations” error in mysql
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Another option is to use the BINARY operator:
BINARY str is the shorthand for CAST(str AS BINARY).
Your solution might look something like this:
SELECT * FROM table WHERE BINARY a = BINARY b;
or,
SELECT * FROM table ORDER BY BINARY a;
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Any way to properly pretty-print ordered dictionaries?
I like the pprint module in Python. I use it a lot for testing and debugging. I frequently use the width option to make sure the output fits nicely within my terminal window.
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Find a value anywhere in a database
Given a #, how do I discover in what table and column it could be found within?
18 Answers
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Find XOR of all numbers in a given range
You are given a large range [a,b] where 'a' and 'b' can be typically between 1 and 4,000,000,000 inclusive. You have to find out the XOR of all the numbers in the given range.
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What's the difference between lists enclosed by square brackets and parentheses in Python?
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for the above 'y=x' example , list and tuple behave in the same way now (verified in python3.8.5)
– Youjun Hu
Aug 15 at 9:11
add a comm...
HashSet vs. List performance
...be better off using a List<T>.
I did a test for this on my machine, and, well, it has to be very very small to get an advantage from List<T>. For a list of short strings, the advantage went away after size 5, for objects after size 20.
1 item LIST strs time: 617ms
1 item HASHSET strs t...
Length of an integer in Python
...f digits in the integer, you can always convert it to string like str(133) and find its length like len(str(123)).
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