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How to see if an object is an array without using reflection?
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You can use instanceof.
JLS 15.20.2 Type Comparison Operator instanceof
RelationalExpression:
RelationalExpression instanceof ReferenceType
At run time, the result of the instanceof operator is true if the value of the RelationalExpression is not...
JavaScript exponents
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answered Nov 18 '15 at 20:04
Salvador DaliSalvador Dali
169k116116 gold badges609609 silver badges691691 bronze badges
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Why is a round-trip conversion via a string not safe for a double?
...006, which is your original number -- so it compares equal, and hence only 15 digits are returned.
However, if I truncate the string at that zero to 84551240822557, then I get back 0.84551240822556994, which is not your original number, and hence it would return 17 digits.
Proof: run the following...
Bootstrap modal appearing under background
...other idea?
– Tuan Anh Tran
Feb 24 '15 at 7:18
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show 14 more comments
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Does MySQL ignore null values on unique constraints?
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Mark ByersMark Byers
683k155155 gold badges14681468 silver badges13881388 bronze badges
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How to find all occurrences of a substring?
...m.start() for m in re.finditer('test', 'test test test test')]
#[0, 5, 10, 15]
If you want to find overlapping matches, lookahead will do that:
[m.start() for m in re.finditer('(?=tt)', 'ttt')]
#[0, 1]
If you want a reverse find-all without overlaps, you can combine positive and negative lookah...
How to add multi line comments in makefiles
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154
No, there is nothing like C-style /* */ comments in makefiles. As somebody else suggested, yo...
How do I find duplicates across multiple columns?
... inner query.
– Adam Parkin
Jan 13 '15 at 23:52
3
If the values can possibly contain null then (u...
'^M' character at end of lines
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answered Sep 15 '08 at 17:07
Thomas OwensThomas Owens
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Unable to forward search Bash history similarly as with CTRL-r
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idbrii
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answered Apr 26 '09 at 23:09
hlovdalhlovdal
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