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MongoDb query condition on comparing 2 fields
... constant and filter. This way you avoid javascript execution. Below is my test in python:
import pymongo
from random import randrange
docs = [{'Grade1': randrange(10), 'Grade2': randrange(10)} for __ in range(100000)]
coll = pymongo.MongoClient().test_db.grades
coll.insert_many(docs)
Using agg...
jQuery post() with serialize and extra data
...
$.ajax({
type: 'POST',
url: 'test.php',
data:$("#Test-form").serialize(),
dataType:'json',
beforeSend:function(xhr, settings){
settings.data += '&moreinfo=MoreData';
},
success:function(data){
// json respo...
Number of days in particular month of particular year?
...h.of(1999, 2);
int daysInMonth = yearMonthObject.lengthOfMonth(); //28
Test: try a month in a leap year:
yearMonthObject = YearMonth.of(2000, 2);
daysInMonth = yearMonthObject.lengthOfMonth(); //29
Java 7 and earlier
Create a calendar, set year and month and use getActualMaximum
int iYear ...
SQL Server: SELECT only the rows with MAX(DATE)
...
select OrderNo,PartCode,Quantity
from dbo.Test t1
WHERE EXISTS(SELECT 1
FROM dbo.Test t2
WHERE t2.OrderNo = t1.OrderNo
AND t2.PartCode = t1.PartCode
GROUP BY t2.OrderNo,
t2.PartCode
HAVING t1.DateEntere...
How to access class constants in Twig?
...PERSON') %}
See documentation for the constant function and the constant test.
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PHP cURL HTTP CODE return 0
...ost no found), so with the last one, there is nobody to send a code back.
Tested using the code below.
<?php
$html_brand = "www.google.com";
$ch = curl_init();
$options = array(
CURLOPT_URL => $html_brand,
CURLOPT_RETURNTRANSFER => true,
CURLOPT_HEADER =&g...
Windows service on Local Computer started and then stopped error
...
You may want to unit test the initialization - but because it's in the OnStart method this is near to impossible. I would suggest moving the initialization code out into a separate class so that it can be tested or at least re-used in a form tes...
How can “while (i == i) ;” be a non-infinite loop in a single threaded application?
...t;code>false</code> otherwise.
*
* @param v the value to be tested.
* @return <code>true</code> if the value of the argument is NaN;
* <code>false</code> otherwise.
*/
static public boolean isNaN(double v) {
return (v != v);
}
...
Convert NSArray to NSString in Objective-C
...ng:@" "];
NSLog(@"%@",greeting);
Output :
2015-01-25 08:47:14.830 StringTest[11639:394302] Hello World
As Sanjay had hinted - I used method componentsJoinedByString from NSArray that does joining and gives you back NSString
BTW NSString has reverse method componentsSeparatedByString that does ...
How to append output to the end of a text file
...rator. This will append data from a command to the end of a text file.
To test this try running:
echo "Hi this is a test" >> textfile.txt
Do this a couple of times and then run:
cat textfile.txt
You'll see your text has been appended several times to the textfile.txt file.
...