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Why does the jquery change event not trigger when I set the value of a select using val()?
...e logic in the change() event handler is not being run when the value is set by val() , but it does run when user selects a value with their mouse. Why is this?
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Custom Cell Row Height setting in storyboard is not responding
... the cells on my table view. I am adjusting the size from the "row height" setting inside the "size inspector" of the cell in question. When I run the app on my iPhone the cell has the default size set from the "row size" in the table view.
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How to remove leading zeros from alphanumeric text?
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MongoDB drop every database
I would like to know if there're a command to drop every databases from my MongoDB?
8 Answers
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Overriding fields or properties in subclasses
... Another option is to have a read-only property in the base class which is set from a constructor parameter:
abstract class Mother
{
private readonly int myInt;
public int MyInt { get { return myInt; } }
protected Mother(int myInt)
{
this.myInt = myInt;
}
}
class Daugh...
Where can I set environment variables that crontab will use?
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Have 'cron' run a shell script that sets the environment before running the command.
Always.
# @(#)$Id: crontab,v 4.2 2007/09/17 02:41:00 jleffler Exp $
# Crontab file for Home Directory for Jonathan Leffler (JL)
#-----------------------------------------...
Change auto increment starting number?
In MySQL, I have a table, and I want to set the auto_increment value to 5 instead of 1 . Is this possible and what query statement does this?
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Advantages of stateless programming?
I've recently been learning about functional programming (specifically Haskell, but I've gone through tutorials on Lisp and Erlang as well). While I found the concepts very enlightening, I still don't see the practical side of the "no side effects" concept. What are the practical advantages of it? ...
Delete a key from a MongoDB document using Mongoose
...e action in question by this:
User.collection.update({_id: user._id}, {$unset: {field: 1 }});
Since version 2.0 you can do:
User.update({_id: user._id}, {$unset: {field: 1 }}, callback);
And since version 2.4, if you have an instance of a model already you can do:
doc.field = undefined;
doc.s...
How to remove a web site from google analytics
...o delete from the dropdown.
In the right-hand column, click on "View Settings." ("Property Settings" in dec. 2015)
At the bottom of the next page, select "Delete this view."
It will warn you that you're about to delete all of the data associated with this property. If you're sure...