大约有 40,000 项符合查询结果(耗时:0.0404秒) [XML]
JQuery to check for duplicate ids in a DOM
...ges). This works fine.
(function () {
var elms = document.getElementsByTagName("*"), i, len, ids = {}, id;
for (i = 0, len = elms.length; i < len; i += 1) {
id = elms[i].id || null;
if (id) {
ids[id] = ids.hasOwnProperty(id) ? ids[id] +=1 : 0;
}
...
mongodb count num of distinct values per field/key
...is example of using aggregation API. To complicate the case we're grouping by case-insensitive words from array property of the document.
db.articles.aggregate([
{
$match: {
keywords: { $not: {$size: 0} }
}
},
{ $unwind: "$keywords" },
{
$group: {...
postgresql return 0 if returned value is null
...query:
SELECT AVG( price )
FROM(
SELECT *, cume_dist() OVER ( ORDER BY price DESC ) FROM web_price_scan
WHERE listing_Type = 'AARM'
AND u_kbalikepartnumbers_id = 1000307
AND ( EXTRACT( DAY FROM ( NOW() - dateEnded ) ) ) * 24 < 48
AND COALESCE( price, 0 ) > ...
Uniq by object attribute in Ruby
...
This is the correct answer for ruby 1.9 and later versions.
– nurettin
Dec 15 '12 at 7:06
2
...
How do I sort an NSMutableArray with custom objects in it?
...d let's say they are 'Person' objects. I want to sort the NSMutableArray by Person.birthDate which is an NSDate .
27 Ans...
How can I remove duplicate rows?
...
Assuming no nulls, you GROUP BY the unique columns, and SELECT the MIN (or MAX) RowId as the row to keep. Then, just delete everything that didn't have a row id:
DELETE FROM MyTable
LEFT OUTER JOIN (
SELECT MIN(RowId) as RowId, Col1, Col2, Col3
F...
LINQ - Full Outer Join
...r query provider. You'll probably want to use LINQ to Objects in that case by calling AsEnumerable() before you perform the union/concatenation. Try that and see how that goes. If this is not the route you want to go, I'm not sure I can be of any more help than that.
– Jeff Mer...
How can I disable a button in a jQuery dialog from a function?
...'disabled', true) is preferred in jQuery 1.6+
– Molomby
May 25 '12 at 13:21
|
show 2 more comments
...
How to set a selected option of a dropdown list control using angular JS
...same issue I thought of sharing how I got the solution.
You can use track by attribute in your ng-options.
Assume that you have:
variants:[{'id':0, name:'set of 6 traits'}, {'id':1, name:'5 complete sets'}]
You can mention your ng-options as:
ng-options="v.name for v in variants track by v.id...
How to add a button to a PreferenceScreen?
...ndroid:choiceMode="multipleChoice">
</ListView>
Access Button by:
Button button = (Button) findViewById(R.id.button);
button.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
//Your event
}
});
You can get the button on top or on b...
