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Iterate a list with indexes in Python
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And sometimes people only read the first one and a half lines of the question instead of the whole question. If you get to the end of the second line he says he wants to use it instead of for i in range(len(name_of_list)): which is what led me to prov...
Why doesn't Java support unsigned ints?
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Reading between the lines, I think the logic was something like this:
generally, the Java designers wanted to simplify the repertoire of data types available
for everyday purposes, they felt that the most common need was fo...
The Ruby %r{ } expression
...ote that the %r{}x variant ignores whitespace, making complex regexps more readable. Example from GitHub's Ruby style guide:
regexp = %r{
start # some text
\s # white space char
(group) # first group
(?:alt1|alt2) # some alternation
end
}x
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How to test multiple variables against a value?
...g his advice you would now have separate if-statements so that Python will read each statement whether the former were True or False. Such as:
if 0 in {x, y, z}:
mylist.append("c")
if 1 in {x, y, z}:
mylist.append("d")
if 2 in {x, y, z}:
mylist.append("e")
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This will work, but if y...
System.currentTimeMillis vs System.nanoTime
...safe to compare the results of System.nanoTime() calls between different threads. Even if the events of the threads happen in a predictable order, the difference in nanoseconds can be positive or negative.
System.currentTimeMillis() is safe for use between threads.
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How to saveHTML of DOMDocument without HTML wrapper?
...IS NOT THE FINAL SOLUTION HOWEVER! See below for the complete answer, keep reading for context)
We cut 12 away from the start of the document because <html><body> = 12 characters (<<>>+html+body = 4+4+4), and we go backwards and cut 15 off the end because \n</body><...
Using PUT method in HTML form
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@hakre HTML5 is the de-facto standard already, and will probably evolve over time. What the W3C calls "Draft" is a documented developed over at least 3 years with the input of browser vendors with more than >99%, and has already been implemented (at least when i...
Entity Framework - Invalid Column Name '*_ID"
... This answer indeed saved by day quickly. and thanks to LUKE, i did read his comment. Though @drewid made it at the last of the answer chain, but it was superb and what was needed for most facing this situation.
– Div Tiwari
Jan 21 at 13:18
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How do you create optional arguments in php?
...ent optional parameter. For example, for the date() function, the manual reads:
6 Answers
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ORA-00054: resource busy and acquire with NOWAIT specified or timeout expired
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Your table is already locked by some query. For example, you may have executed "select for update" and have not yet committed/rollbacked and fired another select query. Do a commit/rollback before executing your query.
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