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How to measure time taken between lines of code in python?
...g about time.time() is that it is affected by time sunchronization ntpdate etc. I would say time.clock() would be the only reliable alternative because of this
– www.jensolsson.se
Jul 26 '16 at 6:58
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In HTML5, should the main navigation be inside or outside the element?
...site that has different sites (presentation site, service site, auth site, etc...), they all have different structure. What I'm doing is placing that link inside the <nav> element but not inside the <ul> element, styling it in a way that's not part of the main navigation list. With the e...
Is it correct to use DIV inside FORM?
... form will submit only its input type controls ( *also Textarea , Select , etc...).
You have nothing to worry about a div within a form.
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JPA eager fetch does not join
What exactly does JPA's fetch strategy control? I can't detect any difference between eager and lazy. In both cases JPA/Hibernate does not automatically join many-to-one relationships.
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Setting log level of message at runtime in slf4j
...Logback uses SLF4J and the migration will be painless, just the xml config files will have to be changed.
Remember to set the log level back after you're done.
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What's a correct and good way to implement __hash__()?
...pedia also has a summary of various collision resolution methods:
Also, "File Organization And Processing" by Tharp covers alot of collision resolution methods extensively. IMO it's a great reference for hashing algorithms.
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Write a program to find 100 largest numbers out of an array of 1 billion numbers
...ted? If repeated, how frequently? If it is a one-off and the data are in a file, then 'cat srcfile | sort (options as needed) | head -100' will have you quickly doing productive work that you are getting paid to do while the computer handles this trivial chore.
If it is repeated, you would advise p...
Java Reflection Performance
... too much--so I guess I'd still say ALWAYS design for readability, then profile and optimize later)
– Bill K
Aug 16 '10 at 19:35
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How can I combine two HashMap objects containing the same types?
...od can be more generic, use varargs and loop to putAll Maps from arguments etc. but I wanted to show a concept.
Also, ImmutableMap and its Builder have few limitations (or maybe features?):
they are null hostile (throw NullPointerException - if any key or value in map is null)
Builder don't accep...
Can you grab or delete between parentheses in vi/vim?
...aces, parens, C-style comments and various precompiler statements (#ifdef, etc.).
There is a plugin for "extended % matching" that you can find on the Vim homepage.
You can read the documentation on % and related motion commands by entering :help various-motions in command mode.
object-select
Th...