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MongoDb query condition on comparing 2 fields
...{$where: function() {return this.startDate == ISODate("2017-01-20T10:55:08.000Z");}}); it returns nothing, even one of the doc in the collection is ISODate("2017-01-20T10:55:08.000Z"). But <= and >= seem work. any idea?
– cateyes
Feb 22 '17 at 22:51
...
Add comma to numbers every three digits
...gt;
</head>
<body>
<div class="numbers">1000</div>
<div class="numbers">2000000</div>
</body>
</html>
Output:
1,000
2,000,000
share
|
...
Finding sum of elements in Swift array
...g on an iPhone 7 with latest Swift and XCode (a simple array filled with 1,000,000 UInt32 random values capped at 256 to prevent UInt32 overflow) interestingly shows the 'for' loop being just a hair faster (1.941 seconds versus 2.137 seconds), although that advantage is not present at 100,000 values...
Can I have an onclick effect in CSS?
... border-radius: 5px;
padding: 1px 3px;
box-shadow: 1px 1px 1px #000;
display: block;
text-align: center;
background-image: linear-gradient(to bottom, #f4f5f5, #dfdddd);
font-family: arial;
font-size: 12px;
line-height:20px;
}
.btn:hover {
background-image: lin...
How do you express binary literals in Python?
...0111
3 79228162514264337593543950336 0o377 0xdeadbeef
100_000_000_000 0b_1110_0101
Changed in version 3.6: Underscores are now allowed for grouping purposes in literals.
Other ways of expressing binary:
You can have the zeros and ones in a string object wh...
How efficient can Meteor be while sharing a huge collection among many clients?
...ens on an update
So now we've set the stage for your scenario.
We have 1,000 connected clients. Each is subscribed to the same live
Mongo query (Somestuff.find({})). Since the query is the same for each client, the driver is
only running one live query. There are 1,000 active merge boxes. And
...
How to get client's IP address using JavaScript?
...urrency_name": "Singapore Dollar",
"success": true
}
Limitations:
10,000 requests per hour
Free API only allows non-commercial use
geoPlugin
Try it: http://www.geoplugin.net/json.gp
$.getJSON('http://www.geoplugin.net/json.gp?jsoncallback=?', function(data) {
console.log(JSON.stringify(dat...
How to convert float to varchar in SQL Server
...uncating fractional part or some other drawback).
declare @float float = 1000000000.1234;
select format(@float, N'#.##############################');
output:
1000000000.1234
this has the further advantage (in my case) to make thousands separator and localization easy:
select format(@float, N'...
Select n random rows from SQL Server table
I've got a SQL Server table with about 50,000 rows in it. I want to select about 5,000 of those rows at random. I've thought of a complicated way, creating a temp table with a "random number" column, copying my table into that, looping through the temp table and updating each row with RAND() , and ...
Java LinkedHashMap get first or last entry
...ithArrayListMethod : " + "took " + new BigDecimal((endTime - startTime) / 1000000.000).setScale(3, RoundingMode.CEILING) + " milliseconds");
startTime = System.nanoTime();
FindLasstEntryWithArrayMethod();
endTime = System.nanoTime();
System.out.println("FindLasstEn...