大约有 30,000 项符合查询结果（耗时：0.0441秒） [XML]
Inject errors into already validated form?
... have a form where users provide a new name that must be unique in the database. If there's a collision I'd like to send the form back with an error on it, but I won't know until I actually try to do the database insert. (In theory the validator could check the database, but that smells and is race-...
Read-only and non-computed variable properties in Swift
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
Draft saved
Draft discarded
...
PostgreSQL: Drop PostgreSQL database through command line [closed]
...
gsamaras
64.5k3131 gold badges140140 silver badges240240 bronze badges
answered Aug 16 '11 at 5:11
csanocsano
...
What are the “standard unambiguous date” formats for string-to-date conversion in R?
...
as.Date(res)
}
<bytecode: 0x265b0ec>
<environment: namespace:base>
So basically if both strptime(x, format="%Y-%m-%d") and strptime(x, format="%Y/%m/%d") throws an NA it is considered ambiguous and if not unambiguous.
...
In Intellij, how do I toggle between camel case and underscore spaced?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
Draft saved
Draft discarded
...
UnicodeDecodeError, invalid continuation byte
...
64
It is invalid UTF-8. That character is the e-acute character in ISO-Latin1, which is why it su...
How can I make robocopy silent in the command line except for progress?
...
I test > log:nul under win8.1 x64, there is a empty log file. > nul works as expected.
– Ivan Yan
Apr 4 '15 at 14:03
1
...
How can you get the Manifest Version number from the App's (Layout) XML variables?
...
Oops. I must have been thinking Preference XML based on another comment.
– seastland
Nov 24 '13 at 18:44
...
How to convert an xml string to a dictionary?
... do the reverse, emit an XML string from a JSON/dict, you can use:
try:
basestring
except NameError: # python3
basestring = str
def dict_to_etree(d):
def _to_etree(d, root):
if not d:
pass
elif isinstance(d, basestring):
root.text = d
elif i...
angular.service vs angular.factory
....
app.factory('myFactory', function($http, $q){
var service = {};
var baseUrl = 'https://itunes.apple.com/search?term=';
var _artist = '';
var _finalUrl = '';
var makeUrl = function(){
_artist = _artist.split(' ').join('+');
_finalUrl = baseUrl + _artist + '&callback=JSON_CALL...