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Mongoose's find method with $or condition does not work properly
...quire('mongoose').Types.ObjectId;
var objId = new ObjectId( (param.length < 12) ? "123456789012" : param );
// You should make string 'param' as ObjectId type. To avoid exception,
// the 'param' must consist of more than 12 characters.
User.find( { $or:[ {'_id':objId}, {'name':param}, {'nicknam...
How do I bottom-align grid elements in bootstrap fluid layout
...th bootstrap with no javascript / jquery needed.
– Filth
Nov 8 '17 at 12:37
1
Yup, add this to a ...
UINavigationBar custom back button without title
... Thanks Kyle! I've been looking for a way to rename the default back button in iOS 7. I put this in my prepareForSegue in the view controller and it worked perfectly.
– yiwei
Jan 6 '14 at 15:32
...
Slicing of a NumPy 2d array, or how do I extract an mxm submatrix from an nxn array (n>m)?
...
To answer this question, we have to look at how indexing a multidimensional array works in Numpy. Let's first say you have the array x from your question. The buffer assigned to x will contain 16 ascending integers from 0 to 15. If you access one element, say x[i,j], NumPy has to fi...
PHP prepend leading zero before single digit number, on-the-fly [duplicate]
...
You can use sprintf: http://php.net/manual/en/function.sprintf.php
<?php
$num = 4;
$num_padded = sprintf("%02d", $num);
echo $num_padded; // returns 04
?>
It will only add the zero if it's less than the required number of characters.
Edit: As pointed out by @FelipeAls:
When working ...
What is the best way to convert seconds into (Hour:Minutes:Seconds:Milliseconds) time?
...
For .Net <= 4.0 Use the TimeSpan class.
TimeSpan t = TimeSpan.FromSeconds( secs );
string answer = string.Format("{0:D2}h:{1:D2}m:{2:D2}s:{3:D3}ms",
t.Hours,
t.Minutes,
t.Seconds,...
Why do I get “a label can only be part of a statement and a declaration is not a statement” if I hav
...ng track of the scope the way you would need to inside a block.
#include <stdio.h>
int main ()
{
printf("Hello ");
goto Cleanup;
Cleanup: ; //This is an empty statement.
char *str = "World\n";
printf("%s\n", str);
}
...
Does PostgreSQL support “accent insensitive” collations?
...ke:
ERROR: could not open extension control file
"/usr/share/postgresql/<version>/extension/unaccent.control": No such file or directory
Install the contrib package on your database server like instructed in this related answer:
Error when creating unaccent extension on PostgreSQL
Amo...
Click Event on UIImageView programmatically in ios
...
By default singleTap.numberOfTapsRequired=1, Happy Coding Thanks
– Ravi
Nov 25 '17 at 14:06
...
What is the “N+1 selects problem” in ORM (Object-Relational Mapping)?
...Cars, and then N additional selects, where N is the total number of cars.
Alternatively, one could get all wheels and perform the lookups in memory:
SELECT * FROM Wheel
This reduces the number of round-trips to the database from N+1 to 2.
Most ORM tools give you several ways to prevent N+1 selects....