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Find objects between two dates MongoDB
I've been playing around storing tweets inside mongodb, each object looks like this:
14 Answers
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Stop an input field in a form from being submitted
...could insert input fields without "name" attribute:
<input type="text" id="in-between" />
Or you could simply remove them once the form is submitted (in jQuery):
$("form").submit(function() {
$(this).children('#in-between').remove();
});
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How to make HTML input tag only accept numerical values?
...ue.
The input is not part of a form. Hence it doesn't get submitted, so validating during submission is not an option. I want the user to be unable to type in any characters other than numbers.
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Date query with ISODate in mongodb doesn't seem to work
..."2012-01-01T15:00:00.000Z"}})
you'll get error:
error: { "$err" : "invalid operator: $date", "code" : 10068 }
Try this:
db.mycollection.find({
"dt" : {"$gte": new Date("2013-10-01T00:00:00.000Z")}
})
or (following comments by @user3805045):
db.mycollection.find({
"dt" : {"$gte": ISO...
Why should C++ programmers minimize use of 'new'?
... bookkeeping and the next address to allocate is implicit.
In C++, this is called automatic storage because the storage is claimed automatically at the end of scope. As soon as execution of current code block (delimited using {}) is completed, memory for all variables in that block is automatically...
Difference between reduce and foldLeft/fold in functional programming (particularly Scala and Scala
...ering.
If you have a look at the Spark documentation for reduce it specifically says "... commutative and associative binary operator"
http://spark.apache.org/docs/1.0.0/api/scala/index.html#org.apache.spark.rdd.RDD
Here is proof that reduce is NOT just a special case of foldLeft
scala> val i...
Search for all occurrences of a string in a mysql database [duplicate]
...l in a database. I want to search all tables and all fields. But I have no idea where to start or if it's even possible.
17...
How to allow to accept only image files?
...file" name="myImage" accept="image/*" />
Note that this only provides a hint to the browser as to what file-types to display to the user, but this can be easily circumvented, so you should always validate the uploaded file on the server also.
It should work in IE 10+, Chrome, Firefox, S...
Encapsulation vs Abstraction?
...e, you see their different types of functionalities as camera, mp3 player, calling function, recording function, multimedia etc. It is abstraction, because you are seeing only relevant information instead of their internal engineering.
abstract class MobilePhone
{
public void Calling()...
How do I specify new lines on Python, when writing on files?
...right, you look up the newline character in the os package. (It's actually called linesep.)
Note: when writing to files using the Python API, do not use the os.linesep. Just use \n; Python automatically translates that to the proper newline character for your platform.
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