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How do I remove the first characters of a specific column in a table?
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Is it safe to call this on a NULL column? Would would happen in this case?
– Ian R. O'Brien
Dec 6 '12 at 17:45
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How do I fire an event when a iframe has finished loading in jQuery?
...t work as expected. From the JQuery docs: "The .ready() method can only be called on a jQuery object matching the current document, so the selector can be omitted." Sounds like it will be fired after $(document) no matter the selector used.
– Cazuma Nii Cavalcanti
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Using GPU from a docker container?
... is a set of 2 numbers between the group and the date.
These 2 numbers are called major and minor numbers (wrote in that order) and design a device.
We will just use the major numbers for convenience.
Why do we activated lxc driver?
To use the lxc conf option that allow us to permit our container t...
User Authentication in ASP.NET Web API
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Wow! That's what I call an answer. So, to conclude. I am planning in doing the following: 1. Create an account controller with a Login method that receives the user name and password over HTTPS and returns the login result and the token. 2. The...
What is Ad Hoc Query?
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Ad hoc is latin for "for this purpose". You might call it an "on the fly" query, or a "just so" query. It's the kind of SQL query you just loosely type out where you need it
var newSqlQuery = "SELECT * FROM table WHERE id = " + myId;
...which is an entirely different quer...
What does `:_*` (colon underscore star) do in Scala?
...utes: MetaData, scope: NamespaceBinding,
child: Node*)
which is called as
new Elem(prefix, label, attributes, scope,
child1, child2, ... childN)
but here there is only a sequence, not child1, child2, etc. so this allows the result sequence to be used as the input to the constr...
TypeError: ObjectId('') is not JSON serializable
...ing json_util.dumps(), convert back to dict using json.loads() and finally call Flask's jsonify on it.
Example (derived from previous question's answer):
from bson import json_util, ObjectId
import json
#Lets create some dummy document to prove it will work
page = {'foo': ObjectId(), 'bar': [Obj...
Get time difference between two dates in seconds
... the comments unless you're using typescript.
The explanation
You need to call the getTime() method for the Date objects, and then simply subtract them and divide by 1000 (since it's originally in milliseconds). As an extra, when you're calling the getDate() method, you're in fact getting the day o...
Does Qt support virtual pure slots?
...just like regular c++ pure virtual methods. The code generated by MOC does call the pure virtual slots, but that's ok since the base class can't be instantiated anyway...
Again, just like regular c++ pure virtual methods, the class cannot be instantiated until the methods are given an implementatio...
Difference between matches() and find() in Java Regex
...s() is not simply a find() with implied surrounding ^ and $. Be aware that calling .find() more than once may have different results if not preceeded by reset(), while matches() will always return same result. See my answer below.
– L. Holanda
Nov 20 '15 at 22:...