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How to differentiate between time to live and time to idle in ehcache
...idated if it hasn't been requested for 4 seconds.
If timeToLiveSeconds = 90, then the object will be removed from cache after 90 seconds, even if it has been requested few milliseconds in the 90th second of its short life.
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Rotating a two-dimensional array in Python
...nclose the whole thing in list() to get an actual list back out, so as of 2020 it's actually:
list(zip(*original[::-1]))
Here's the breakdown:
[::-1] - makes a shallow copy of the original list in reverse order. Could also use reversed() which would produce a reverse iterator over the list rather...
UITextfield leftView/rightView padding on iOS7
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90
Was just working on this myself and used this solution:
- (CGRect) rightViewRectForBounds:(CGRe...
One-line list comprehension: if-else variants
...sion you're returning for each element. Thus you need:
[ x if x%2 else x*100 for x in range(1, 10) ]
The confusion arises from the fact you're using a filter in the first example, but not in the second. In the second example you're only mapping each value to another, using a ternary-operator expr...
Pull to refresh UITableView without UITableViewController
...ction: #selector(refresh(_:)), for: .valueChanged)
if #available(iOS 10.0, *) {
tableView.refreshControl = refreshControl
} else {
tableView.backgroundView = refreshControl
}
}
@objc func refresh(_ refreshControl: UIRefreshControl) {
// Do your job, when done:
r...
How do you calculate log base 2 in Java for integers?
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10 Answers
10
Active
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Do try/catch blocks hurt performance when exceptions are not thrown?
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+100
Check it.
static public void Main(string[] args)
{
Stopwatch w = new Stopwatch();
double d = 0;
w.Start();
for (in...
Create a variable name with “paste” in R?
... |
edited Apr 1 '11 at 9:00
answered Apr 1 '11 at 8:54
lec...
How to change the DataTable Column Name?
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answered Jun 20 '11 at 5:47
MoonMoon
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Postgresql SELECT if string contains
... Frans van BuulFrans van Buul
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