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Changing the image source using jQuery
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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");
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Go Unpacking Array As Arguments
... []int{2,4}
sum := my_func(arr...)
fmt.Println("Sum is ", sum)
}
Now you can sum as many things as you'd like. Notice the important ... after when you call the my_func function.
Running example: http://ideone.com/8htWfx
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Creating a JSON response using Django and Python
...JSON content.
import json
from django.http import HttpResponse
response_data = {}
response_data['result'] = 'error'
response_data['message'] = 'Some error message'
Pre-Django 1.7 you'd return it like this:
return HttpResponse(json.dumps(response_data), content_type="application/json")
For D...
How to check if a user likes my Facebook Page or URL using Facebook's API
I think I'm going crazy. I can't get it to work.
I simply want to check if a user has liked my page with javascript in an iFrame app.
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Using “label for” on radio buttons
...answer. Both of Martha examples are perfectly valid HTML5. And for example if You want the whole thing to be in a frame, it is easier to style second one using css. If You want labels to be somewhere else, first one. But both are OK. Best regards!
– Jacek Kowalewski
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viewWillDisappear: Determine whether view controller is being popped or is showing a sub-view contro
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NSArray *viewControllers = self.navigationController.viewControllers;
if (viewControllers.count > 1 && [viewControllers objectAtIndex:viewControllers.count-2] == self) {
// View is disappearing because a new view controller was pushed onto the stack
NSLog(@"New view controlle...
Redis: Show database size/size for keys
...acticable for debugging to me, not too mention that the dump is a few gigs now!
– Bernhard Vallant
Oct 3 '11 at 23:47
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Accessing a Shared File (UNC) From a Remote, Non-Trusted Domain With Credentials
... to map a drive.
This will allow you to connect to a remote machine, even if it is not on the same domain, and even if it has a different username and password.
Once you have used WNetUseConnection you will be able to access the file via a UNC path as if you were on the same domain. The best way...
MySQL: #126 - Incorrect key file for table
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First of all, you should know that keys and indices are synonyms in MySQL. If you look at the documentation about the CREATE TABLE Syntax, you can read:
KEY is normally a synonym for INDEX. The key attribute PRIMARY KEY can also be specified as ju...
Why #define TRUE (1==1) in a C boolean macro instead of simply as 1?
... approach will use the actual boolean type (and resolve to true and false) if the compiler supports it. (specifically, C++)
However, it would be better to check whether C++ is in use (via the __cplusplus macro) and actually use true and false.
In a C compiler, this is equivalent to 0 and 1.
(note ...