大约有 18,336 项符合查询结果（耗时：0.0260秒） [XML]
Find out whether Chrome console is open
...detects
When printing “Element” Chrome developer tools will get its id
var checkStatus;
var element = document.createElement('any');
element.__defineGetter__('id', function() {
checkStatus = 'on';
});
setInterval(function() {
checkStatus = 'off';
console.log(element);
conso...
input type=file show only button
...
<input type="file" id="selectedFile" style="display: none;" />
<input type="button" value="Browse..." onclick="document.getElementById('selectedFile').click();" />
This will surely work i have used it in my projects.I hope this helps...
LINQ To Entities does not recognize the method Last. Really?
...it though, just order descending and then do a First(), which is what you did.
EDIT:
Other providers will possibly have different implementations of SELECT TOP 1, on Oracle it would probably be something more like WHERE ROWNUM = 1
EDIT:
Another less efficient alternative - I DO NOT recommend this...
Border for an Image view in Android?
How can I set a border for an ImageView and change its color in Android?
16 Answers
...
Ways to save enums in database
...ue of the enumeration is meaningless:
SELECT Suit FROM Cards
ORDER BY SuitID; --where SuitID is integer value(4,1,3,2,0)
Suit
------
Spade
Heart
Diamond
Club
Unknown
That's not the order we want - we want them in enumeration order:
SELECT Suit FROM Cards
ORDER BY CASE SuitID OF
WHEN 4 THEN ...
How can I get the domain name of my site within a Django template?
...tabase (mapping the request domain to a settings file with the proper SITE_ID is something you have to do yourself via your webserver setup). In that case you're looking for:
from django.contrib.sites.models import Site
current_site = Site.objects.get_current()
current_site.domain
you'd have to ...
Deep copy of a dict in python
... Is there any difference in Python 3.2 and 2.7 codes? They seem identical to me. If so, would be better a single block of code and a statement "Works for both Python 3 and 2"
– MestreLion
Jun 7 '14 at 3:59
...
What is the advantage of using heredoc in PHP? [closed]
...s much cleaner to me and it is really useful for multi-line strings and avoiding quoting issues. Back in the day I used to use them to construct SQL queries:
$sql = <<<SQL
select *
from $tablename
where id in [$order_ids_list]
and product_name = "widgets"
SQL;
To me this has a low...
Getting the name of a child class in the parent class (static context)
... simplicity in mind; everything goes fine except that I got stuck by a stupid inheritance limitation. Please consider the code below:
...
How do I test if a string is empty in Objective-C?
...
You can check if [string length] == 0. This will check if it's a valid but empty string (@"") as well as if it's nil, since calling length on nil will also return 0.
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