大约有 48,000 项符合查询结果（耗时：0.0607秒） [XML]
error: default argument given for parameter 1
I'm getting this error message with the code below:
1 Answer
1
...
What's the right OAuth 2.0 flow for a mobile app
I am trying to implement delegated authorization in a Web API for mobile apps using OAuth 2.0. According to specification, the implicit grant flow does not support refresh tokens, which means once an access token is granted for an specific period of time, the user must grant permissions to the app a...
What is the JavaScript equivalent of var_dump or print_r in PHP? [duplicate]
I would like to see the structure of object in JavaScript (for debugging). Is there anything similar to var_dump in PHP?
9 ...
Remove URL parameters without refreshing page
...t URL and add / inject it (the new modified URL) as a new URL entry to history list, use pushState:
window.history.pushState({}, document.title, "/" + "my-new-url.html");
2- To replace current URL without adding it to history entries, use replaceState:
window.history.replaceState({}, document.ti...
Reading specific lines only
I'm using a for loop to read a file, but I only want to read specific lines, say line #26 and #30. Is there any built-in feature to achieve this?
...
How to check if a variable is a dictionary in Python?
...
You could use if type(ele) is dict or use isinstance(ele, dict) which would work if you had subclassed dict:
d = {'abc':'abc','def':{'ghi':'ghi','jkl':'jkl'}}
for ele in d.values():
if isinstance(ele,dict):
for k, v in ele.items():
prin...
What does the explicit keyword mean?
What does the explicit keyword mean in C++?
11 Answers
11
...
not None test in Python [duplicate]
...
if val is not None:
# ...
is the Pythonic idiom for testing that a variable is not set to None. This idiom has particular uses in the case of declaring keyword functions with default parameters. is tests identity in Python. Because there is one and only one instance of None...
Javascript web app and Java server, build all in Maven or use Grunt for web app?
...oing a web application with AngularJS and we like the idea of using Bower for Dependency Management and Grunt for building, running tests etc. ( Yeoman )
...
How can I reset or revert a file to a specific revision?
...ash of the commit you want is c5f567:
git checkout c5f567 -- file1/to/restore file2/to/restore
The git checkout man page gives more information.
If you want to revert to the commit before c5f567, append ~1 (where 1 is the number of commits you want to go back, it can be anything):
git checkout ...