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pass string parameter in an onclick function
... answered Mar 10 '12 at 2:41
daviddavid
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Difference between RegisterStartupScript and RegisterClientScriptBlock?
...Script method:
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1"><title></title></head>
<body>
<form name="form1" method="post" action="StartupScript.aspx" id="form1">
<div>
<input type="hidden" name="__VIEWSTATE"...
what is reverse() in Django
...s to it in your code. This violates DRY (Don't Repeat Yourself), the whole idea of editing one place only, which is something to strive for.
Instead, you can say:
from django.urls import reverse
return HttpResponseRedirect(reverse('url_name'))
This looks through all urls defined in your project ...
How do you remove a specific revision in the git history?
...mentation under "Splitting commits" should hopefully give you enough of an idea to figure it out. (Or someone else might know).
From the git documentation:
Start it with the oldest commit you want to retain as-is:
git rebase -i <after-this-commit>
An editor will be fired up with all the c...
How to get element by classname or id
...
It may be worth noting that inside the link function, element.childElementCount may be 0 because angular hasn't had the chance to create the elements yet, so you should be prepared to deal with no results for element[0].getElement...
–...
belongs_to through associations
...tion cannot have a :through option. You're better off caching the question_id on Choice and adding a unique index to the table (especially because validates_uniqueness_of is prone to race conditions).
If you're paranoid, add a custom validation to Choice that confirms that the answer's question_id ...
Only one expression can be specified in the select list when the subquery is not introduced with EXI
...(or multiple) columns in your subquery to do the comparison in the WHERE A_ID IN (subquery) clause - which column is it supposed to compare A_ID to? Your subquery must only return the one column needed for the comparison to the column on the other side of the IN. So the query needs to be of the form...
Changing the image source using jQuery
...You can use jQuery's attr() function. For example, if your img tag has an id attribute of 'my_image', you would do this:
<img id="my_image" src="first.jpg"/>
Then you can change the src of your image with jQuery like this:
$("#my_image").attr("src","second.jpg");
To attach this to a cli...
Format of the initialization string does not conform to specification starting at index 0
...r 2012
Standard Security
Server=myServerAddress;Database=myDataBase;User Id=myUsername;Password=myPassword;
Trusted Connection
Server=myServerAddress;Database=myDataBase;Trusted_Connection=True;
Connection to a SQL Server instance
The server/instance name syntax used in the server option is ...
How do you query for “is not null” in Mongo?
...ue. This includes documents that do not contain the field.
So in your provided case following query going to return all the documents with imageurl field exists and having not null value:
db.mycollection.find({ 'imageurl' : { $exists: true, $ne: null } });
...