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How do you rename a Git tag?
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Here is how I rename a tag old to new:
git tag new old
git tag -d old
git push origin :refs/tags/old
git push --tags
The colon in the push command removes the tag from the remote repository. If you don't do this, Git will create the old tag on your machine when y...
Why does Android use Java? [closed]
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Some points:
Java is a known language, developers know it and don't have to learn it
it's harder to shoot yourself with Java than with C/C++ code since it has no pointer arithmetic
it runs in a VM, so no need to recompile it for every phone out there and easy to secure
large numb...
Iterate through object properties
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Iterating over properties requires this additional hasOwnProperty check:
for (var prop in obj) {
if (Object.prototype.hasOwnProperty.call(obj, prop)) {
// do stuff
}
}
It's necessary because an object's pr...
Ruby - test for array
...follow
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edited Mar 30 at 18:35
siery
17311 silver badge1212 bronze badges
answered Oct 6...
Does Python optimize tail recursion?
I have the following piece of code which fails with the following error:
6 Answers
6
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Avoid web.config inheritance in child web application using inheritInChildApplications
...r mentioned, you cannot simply add the line...
<location path="." inheritInChildApplications="false">
...just below <configuration>. Instead, you need to wrap the individual web.config sections for which you want to disable inheritance. For example:
<!-- disable inheritance for th...
Why shouldn't I use mysql_* functions in PHP?
...as of PHP 7.0 (released December 2015)
This means that as of 31 Dec 2018 it does not exist in any supported version of PHP. If you are using a version of PHP which supports it, you are using a version which doesn't get security problems fixed.
Lacks an OO interface
Doesn't support:
Non-blocking...
When and why should I use fragments in Android applications? [duplicate]
...or and UI, and I don't know how fragments can help. In most cases, I think it is quicker to create 2 different activities (e.g., 1 for tablets and 1 for handsets), and to share the common behaviors and events in a third class.
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django - why is the request.POST object immutable?
As the title asks, why did the Django guys decide to implement the request.POST object with a querydict (which, of course, in turn, makes the whole thing immutable?)
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Why is quicksort better than mergesort?
...t has O(n2) worst-case runtime and O(nlogn) average case runtime. However, it’s superior to merge sort in many scenarios because many factors influence an algorithm’s runtime, and, when taking them all together, quicksort wins out.
In particular, the often-quoted runtime of sorting algorithms r...