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Difference between add(), replace(), and addToBackStack()
What is the main difference between calling these methods:
9 Answers
9
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App Inventor 2 UrsPahoMqttClient 拓展 - ...
How do I view all commits for a specific day?
...rking on a specific day and update my timesheet based on that, but it's a pain in the ass to type in the full date in ISO format so I just do it like this
git log --after=jun9 --before=jun10
and I add --author to only print my commits
git log --since=jun9 --until=jun10 --author=Robert
This pr...
What is an “unwrapped value” in Swift?
...e should look like this:
let optionalSquare: Square? = Square(sideLength: 2.5, name: "optional square")
let sideLength = optionalSquare!.sideLength
A sidenote:
You can also declare optionals to automatically unwrap by using an exclamation mark instead of a question mark.
Example:
var canBeNi...
Difference between array_map, array_walk and array_filter
...$b; }, $origarray1, $origarray2)
);
// select only elements that are > 2.5
print_r(
array_filter($origarray1, function ($a) { return $a > 2.5; })
);
?>
</pre>
Result:
Array
(
[0] => 2
[1] => 2
[2] => 3
)
Array
(
[0] => 2
[1] => 2
[2] =&g...
Schema for a multilanguage database
... This option is similar to my option nr 1 but better. It is still hard to maintain and requires creating new tables for new languages, so I'd be reluctant to implement it.
– qbeuek
Nov 27 '08 at 10:22
...
CSS triangle custom border color
...ng them to something like the following (fiddle):
filter: drop-shadow(0 0 2.5px red) drop-shadow(0 0 0 red) drop-shadow(0 0 0 red) drop-shadow(0 0 0 red) drop-shadow(0 0 0 red) drop-shadow(0 0 0 red) drop-shadow(0 0 0 red) drop-shadow(0 0 0 red) drop-shadow(0 0 0 red);
where the very first one ha...
What's the difference between --general-numeric-sort and --numeric-sort options in gnu sort
..._ALL=C sort -k 6,6n file
in order to sort the 6th column that contains:
2.5
3.7
1.4
in order to obtain
1.4
2.5
3.7
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Solving “Who owns the Zebra” programmatically?
...
Here's a solution in Python based on constraint-programming:
from constraint import AllDifferentConstraint, InSetConstraint, Problem
# variables
colors = "blue red green white yellow".split()
nationalities = "Norwegian German Dane Swede English".split()
pet...
Migrating from JSF 1.2 to JSF 2.0
...
Ensure that root declaration of web.xml already complies at least Servlet 2.5. JSF 2.0 won't work on 2.4 or lower (although it's hackable).
<web-app
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
xmlns:xsi="http://www.w3.org/...