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How do you implement a class in C? [closed]
...t (*computeArea)(const ShapeClass *shape); saying that ShapeClass is an unknown type.
– DanielSank
Aug 9 '16 at 9:01
@...
Python list of dictionaries search
...name": "Dick", "age": 12 }
... ]
>>> next(item for item in dicts if item["name"] == "Pam")
{'age': 7, 'name': 'Pam'}
If you need to handle the item not being there, then you can do what user Matt suggested in his comment and provide a default using a slightly different API:
next((item f...
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
...
What is digest authentication?
...yea, that's very simplified)
The server takes username and realm (plus it knows the URI the client is requesting) and it looks up the password for that username. Then it goes and does its own version of generate_md5_key(nonce, username, realm, URI, password_I_have_for_this_user_in_my_db)
It compares...
Django. Override save for model
Before saving model I'm re-size a picture. But how can I check if new picture added or just description updated, so I can skip rescaling every time the model is saved?
...
Creating .pem file for APNS?
...
I have followed the above steps and now its working.I have kept the certificate and the php script on my local web server (Xampp). I am able to get the device token , and i am using it in the php script. The php script is able to connect and send payload data....
How to use single storyboard uiviewcontroller for multiple subclass
...ave exactly the same interface but with root view controller of class SpecificViewController1 and SpecificViewController2 which are subclasses of BasicViewController .
Those 2 view controllers would have the same functionality and interface except for the IBAction method.
It would be like...
Prototypical inheritance - writing up [duplicate]
... function it uses this. The value of this will be the invoking object; for now let's say it's the current instance so for bob.walk() "this" will be bob. (more on "this" and the invoking object later).
If ben was waiting for a red light and and bob was at a green light; then you'll invoke walk() on ...
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:
$("#my_image").attr("src","second.jpg");
...
List all files in one directory PHP [duplicate]
...eaddir()
This bit of code should list all entries in a certain directory:
if ($handle = opendir('.')) {
while (false !== ($entry = readdir($handle))) {
if ($entry != "." && $entry != "..") {
echo "$entry\n";
}
}
closedir($handle);
}
Edit: miah...