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Regex to check whether a string contains only numbers [duplicate]
... True. It also doesn't handle real numbers, complex numbers, quaternions, etc. The question related to counting numbers and so does my answer.
– Mike Samuel
May 27 '15 at 16:59
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F# development and unit testing?
...k offers a lot more than traditional unit testing frameworks such as NUnit etc.
– Robert
Jan 5 '10 at 13:37
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Django: Get list of model fields?
...l try to update you on Django 2.2
Here posts- your app (posts, blog, shop, etc.)
1) From model link: https://docs.djangoproject.com/en/stable/ref/models/meta/
from posts.model import BlogPost
all_fields = BlogPost._meta.fields
#or
all_fields = BlogPost._meta.get_fields()
Note that:
all_fields=Blog...
How to send a header using a HTTP request through a curl call?
... @MartinKonicek and others: I HIGHLY recommend the tldr utiltiy (brew, etc install tldr). Its only examples. eg "- Send a request with an extra header, using a custom HTTP method: curl -H 'X-My-Header: 123' -X PUT example.com"
– user3853034
Dec 13 '17 ...
Dilemma: when to use Fragments vs Activities:
...r, it's easy to clear all the Fragments, insert more than on Fragments and etcs. But for Activity, it will be a nightmare to manipulate those stuff.
A much predictable lifecycle. As long as the host Activity is not recycled. the Fragments in the backstack will not be recycled. So it's possible to us...
Is there a way to change the environment variables of another process in Unix?
...hich calls for one of the IPC methods (shared memory, semaphores, sockets, etc.). Having received data by one of these methods you could then set environment variables or perform other actions more directly.
Unloading classes in java?
...t.
Done right there should not come a ClassCastException or LinkageError etc.
For more informations about class loader hierarchies (yes, that's exactly what you are implementing here ;- ) look at "Server-Based Java Programming" by Ted Neward - that book helped me implementing something very simil...
Docker can't connect to docker daemon
...g SSH command: Something went wrong running an SSH command!
command : cat /etc/os-release
err : exit status 255
output :
just re-run the three commands another time, and it should work the second time.
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How to check version of python modules?
...ge_name>
It details out the Package_name, Version, Author, Location etc.
$ pip show numpy
Name: numpy
Version: 1.13.3
Summary: NumPy: array processing for numbers, strings, records, and objects.
Home-page: http://www.numpy.org
Author: NumPy Developers
Author-email: numpy-discussion@python...
Android studio using > 100% CPU at all times - no background processes appear to be running
...pears there are no background processes that the IDE is running (indexing, etc). I might suspect this were something specific to my box, but some fellow developers are encountering this as well.
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