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mongoose vs mongodb (nodejs modules/extensions), which better? and why?
...name that the model is defined with can cause it to not save anything, w/o error. We have found that using all lowercase names works best. E.g. instead of doing something like mongooseInstace.model('MyCollection', { "_id": Number, "xyz": String }) it's better to do (even though the collection name i...
MYSQL Truncated incorrect DOUBLE value
...ed with (what appeared to be) a numeric value in the where clause threw an error. Changing modes, it threw a warning instead, but still did not apply the update. Upon closer inspection, the column used in the where clause, despite only having what appeared to be integer values, was actually a varcha...
Rendering HTML inside textarea
I need to be able to render some HTML tags inside a textarea (namely , , , ) but textareas only interpret their content as text. Is there an easy way of doing it without relying on external libraries/plugins (I'm using jQuery)?
If not, do you know of any jQuery plugin I could use to do this?
...
Extracting text OpenCV
...
Thanks for the detailed answer, however I am getting an error in cv2.findContours. It says ValueError: too many values to unpack.
– Abhijith
Mar 22 '17 at 9:59
1...
Why use the params keyword?
... sum += item + 2;
}
return sum;
}
addtwoEach(); // throws an error
Compare with params:
static public int addTwoEach(params int[] args)
{
int sum = 0;
foreach (var item in args)
{
sum += item + 2;
}
return sum;
}
addtwoEach(); // returns 0
Generally,...
Group query results by month and year in postgresql
...s above recommended and I was getting a column 'year_month' does not exist error.
What worked for me was:
SELECT
date_trunc('month', created_at), 'MM/YYYY' AS month
FROM
"orders"
GROUP BY
date_trunc('month', created_at)
...
Safely turning a JSON string into an object
...SON.parse, the program MAY continue "successfully" but you'll still see an error thrown in the console with the dreaded "Error: unexpected token 'x'".
var data;
try {
data = JSON.parse(jqxhr.responseText);
} catch (_error) {}
data || (data = {
message: 'Server error, please retry'
});
...
How to open files relative to home directory
...|
edited Apr 29 '16 at 23:05
the Tin Man
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an...
AngularJS ng-class if-else expression
With AngularJS I'm using ng-class the following way:
9 Answers
9
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Length of a JavaScript object
...rt.
– tokyovariable
Aug 1 '13 at 17:05
4
I use underscore and this post just reminded me that I'm...