大约有 30,000 项符合查询结果（耗时：0.0259秒） [XML]
[] and {} vs list() and dict(), which is better?
...ms of speed, it's no competition for empty lists/dicts:
>>> from timeit import timeit
>>> timeit("[]")
0.040084982867934334
>>> timeit("list()")
0.17704233359267718
>>> timeit("{}")
0.033620194745424214
>>> timeit("dict()")
0.1821558326547077
and for n...
Set attributes from dictionary in python
...solve a problem. Either:
You know what all the fields should be ahead of time. In that case, you can set all the attributes explicitly. This would look like
class Employee(object):
def __init__(self, name, last_name, age):
self.name = name
self.last_name = last_name
se...
CSS scrollbar style cross browser [duplicate]
...
@jmendeth Well, I did not take the time to test it all myself, but according to this page it should work for IE, Chrome, Firefox. And according to this forum thread the IE style rules also work(ed?) in Opera, but only on the main page scrollbars. Not on those ...
Can't install RMagick 2.13.1. Can't find MagickWand.h.
... @JonathonHorsman Correct me if I am wrong, but this your first time installing anything ImageMagick ? In order for rmagick gem to function you need ImageMagick developer libraries, and all of their associated dependencies. So unfortunately, yes you do need all of those packages. On th...
PHP - find entry by object property from an array of objects
...either iterate the array, searching for the particular record (ok in a one time only search) or build a hashmap using another associative array.
For the former, something like this
$item = null;
foreach($array as $struct) {
if ($v == $struct->ID) {
$item = $struct;
break;
...
Parse JSON in JavaScript? [duplicate]
... obj = JSON.parse(json);
console.log(obj.fruit, obj.fingers);
The only time you won't be able to use JSON.parse() is if you are programming for an ancient browser, such as IE 7 (2006), IE 6 (2001), Firefox 3 (2008), Safari 3.x (2009), etc. Alternatively, you may be in an esoteric JavaScript envi...
Recommendations of Python REST (web services) framework? [closed]
... start to use its ORM, its plugins, etc. just because it's easy, and in no time you end up having a dependency that is very hard to get rid of.
Choosing a web framework is a tough decision, and I would avoid picking a full stack solution just to expose a REST api.
Now, if you really need/want to ...
Gitignore not working
...dd .
This removes all files from the repository and adds them back (this time respecting the rules in your .gitignore).
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Set Page title using UI-Router
... can put it in a directive:
app.directive('updateTitle', ['$rootScope', '$timeout',
function($rootScope, $timeout) {
return {
link: function(scope, element) {
var listener = function(event, toState) {
var title = 'Default Title';
if (toState.data &&...
Where do I find the line number in the Xcode editor?
...
Thanks, I will use that at least some of the time. But what I really want is to just display the number of the line I am on.
– William Jockusch
May 5 '11 at 17:27
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