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Cron jobs and random times, within given hours
...a day at completely random times. I also want it to run only between 9am - 11pm.
12 Answers
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Compare if two variables reference the same object in python
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133
That’s what is is for: x is y returns True if x and y are the same object.
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How to make code wait while calling asynchronous calls like Ajax [duplicate]
...nAjaxSuccess: function() {
callback();
};
console.log('Pass1');
}
This will print Pass1 immediately (assuming ajax request takes atleast a few microseconds), then print Pass2 when the onAjaxSuccess is executed.
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Which is more efficient, a for-each loop, or an iterator?
...All iterators have as a fundamental requirement that next() should be an O(1) operation, making the loop O(n).
To verify that the iterator is used underwater by the new for loop syntax, compare the generated bytecodes from the following two Java snippets. First the for loop:
List<Integer> a...
Subtract two variables in Bash
...he exit status:
The exit status is 0 if EXPRESSION is neither null nor 0, 1 if EXPRESSION is null or 0.
Keep this in mind when using the expression in a bash script in combination with set -e which will exit immediately if a command exits with a non-zero status.
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String.equals versus == [duplicate]
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edited Apr 1 '16 at 9:07
answered Apr 20 '09 at 8:25
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