大约有 48,000 项符合查询结果（耗时：0.0556秒） [XML]
Python argparse command line flags without arguments
...is done super quickly (e.g. for testing purposes). Definitely keep it away from production code.
– Jonathan Sudiaman
Apr 9 '17 at 19:14
add a comment
|
...
CSS attribute selector does not work a href
...ent whose "foo" attribute has a hyphen-separated list of values beginning (from the left) with "en" (CSS 2)
source: http://www.w3.org/TR/selectors/
share
|
improve this answer
|
...
How to check if a given directory exists in Ruby
...u could use Kernel#test:
test ?d, 'some directory'
it gets it's origins from https://ss64.com/bash/test.html
you will notice bash test has this flag -d to test if a directory exists
-d file True if file is a Directory. [[ -d demofile ]]
...
Django database query: How to get object by id?
..., mysite.com/something/9182301, you can use get_object_or_404 importing by from django.shortcuts import get_object_or_404.
Use example:
def myFunc(request, my_pk):
my_var = get_object_or_404(CLASS_NAME, pk=my_pk)
share
...
Convert Go map to json
...at's wrong, but you ignored it because you didn't check the error returned from json.Marshal.
json: unsupported type: map[int]main.Foo
JSON spec doesn't support anything except strings for object keys, while javascript won't be fussy about it, it's still illegal.
You have two options:
1 Use map[...
How to execute ipdb.set_trace() at will while running pytest tests
...is to run
pytest my_test.py --pdb --pdbcls=IPython.terminal.debugger:Pdb
From the help command:
pytest -h
--pdb start the interactive Python debugger on errors.
--pdbcls=modulename:classname
start a custom interactive Python debugger on errors.
...
Ruby custom error classes: inheritance of the message attribute
...
Given what the ruby core documentation of Exception, from which all other errors inherit, states about #message
Returns the result of invoking exception.to_s. Normally this returns
the exception’s message or name. By supplying a to_str method,
exceptions are agreeing ...
Twitter Bootstrap Button Text Word Wrap
...
No worries, I learn something each day from stackoverflow. Also you'll notice that the white-space property works well if the element i.e. the button is of a specified width.
– Brian Kinyua
Sep 25 '13 at 4:44
...
What does `:_*` (colon underscore star) do in Scala?
I have the following piece of code from this question :
4 Answers
4
...
git merge: apply changes to code that moved to a different file
... one before the commits you want to merge; most likely, this is the commit from which you branched out to implement your changes. As user @digory doo wrote below, you can do git merge-base master local to find X.
---- X (move)-----CP----- (master)
\
`--A---B--- (local)
On this br...