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How can I redirect the output of the “time” command?
...environment itself, not a subshell. Since the stderr of your shell is typically connected to the terminal, redirection won't do anything. To redirect the builtin time, I believe you'd have to do something like bash time mycmd 2>file. Or just call /usr/bin/time as was mentioned.
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How to substring in jquery
...thin the jQuery namespace, I really don't care much if the case is that is calling directly string.split from JS, but instead from the community I have understood that if I post that exact question, it will be marked as narrowed, as this response is more accepted than the fact that there is a jQuery...
push multiple elements to array
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When using most functions of objects with apply or call, the context parameter MUST be the object you are working on.
In this case, you need a.push.apply(a, [1,2]) (or more correctly Array.prototype.push.apply(a, [1,2]))
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How do I check if a type provides a parameterless constructor?
... constructor. Also slightly speeds up for value types since the reflection call is not made.
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How do you implement a re-try-catch?
... operation.handleException(e);
}
}
}
}
And to call:
OperationHelper.doWithRetry(5, new Operation() {
@Override public void doIt() {
//do some stuff
}
@Override public void handleException(Exception cause) {
//recover from the Exception
}
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Set value to NULL in MySQL
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Don't put NULL inside quotes in your update statement. This should work:
UPDATE table SET field = NULL WHERE something = something
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What are the dangers when creating a thread with a stack size of 50x the default?
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It goes like this: stack < global < heap. (allocation time)
Technically, stack allocation isn't really an allocation, the runtime just makes sure a part of the stack (frame?) is reserved for the array.
I strongly advise being careful with this, though.
I recommend the following:
When y...
What is the difference between Set and List?
...tedSet, there are no two elements where compareTo() == 0, as equals is not called.
– Peter Lawrey
Jun 25 '09 at 17:52
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How to delete/create databases in Neo4j?
...nce by massive repeated testing including deletions and it looks like physically deleting the DB files and having Neo4J recreate them on restart brings a clear improvement in performance.
– flow
Jul 30 '14 at 14:17
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How to change time in DateTime?
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@user295734: Why would you call Add providing a zero timespan? Your expression is equivalent to s.Date, but longer...
– Jon Skeet
Mar 14 '12 at 14:21
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