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Why no ICloneable?
... answered Feb 11 '09 at 11:16
Andrey ShchekinAndrey Shchekin
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Is there an eval() function in Java? [duplicate]
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You can use the ScriptEngine class and evaluate it as a Javascript string.
ScriptEngineManager manager = new ScriptEngineManager();
ScriptEngine engine = manager.getEngineByName("js");
Object result = engine.eval("4*5");
There may be a better way, but this ...
vim deleting backward tricks
... <motion>. This means that:
d<leftArrow> will delete current and left character
d$ will delete from current position to end of line
d^ will delete from current backward to first non-white-space character
d0 will delete from current backward to beginning of line
dw deletes current to en...
Get the index of the nth occurrence of a string?
...if you think about it. (IndexOf will return as soon as it finds the match, and you'll keep going from where it left off.)
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How to specify an array of objects as a parameter or return value in JSDoc?
... all doc tools:
/**
* @param {Array} myArray
*/
jsdoc-toolkit, JSDoc 3, and JSDuck support the following syntax to denote an array of objects:
/**
* @param {Object[]} myArray
*/
EDIT
In case you know the keys and the variable type of the values you can also do:
/**
* @param {Array.<{myNum...
Using union and order by clause in mysql
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select 3 as Rank, id, add_date from Table where distance between 5 and 15
) a
order by rank, id, add_date desc
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Increment a value in Postgres
... want to take a value (which is an integer) in a field in a postgres table and increment it by one. For example if the table 'totals' had 2 columns, 'name' and 'total', and Bill had a total of 203, what would be the SQL statement I'd use in order to move Bill's total to 204?
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Which exception should I raise on bad/illegal argument combinations in Python?
...tion..
def import_to_orm(name, save=False, recurse=False):
if recurse and not save:
raise ValueError("save must be True if recurse is True")
There's really no point in doing class BadValueError(ValueError):pass - your custom class is identical in use to ValueError, so why not use that...
How can I reset or revert a file to a specific revision?
.../to/restore
As a side note, I've always been uncomfortable with this command because it's used for both ordinary things (changing between branches) and unusual, destructive things (discarding changes in the working directory).
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Difference between Static and final?
I'm always confused between static and final keywords in java .
11 Answers
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