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Python class inherits object
... so are numerous, to list some of them:
Support for descriptors. Specifically, the following constructs are made possible with descriptors:
classmethod: A method that receives the class as an implicit argument instead of the instance.
staticmethod: A method that does not receive the implicit ar...
Traverse all the Nodes of a JSON Object Tree with JavaScript
...nObj).forEach(([key, value]) => {
// key is either an array index or object key
traverse(value);
});
}
else {
// jsonObj is a number or string
}
}
This should be a good starting point. I highly recommend using modern javascript methods for su...
What does the “yield” keyword do?
... list, you can read its items one by one. Reading its items one by one is called iteration:
>>> mylist = [1, 2, 3]
>>> for i in mylist:
... print(i)
1
2
3
mylist is an iterable. When you use a list comprehension, you create a list, and so an iterable:
>>> mylist = [...
How can you make a custom keyboard in Android?
...
First of all you will need a keyboard.xml file which will be placed in the res/xml folder (if the folder does not exist, created it).
<?xml version="1.0" encoding="utf-8"?>
<Keyboard xmlns:android="http://schemas.android.com...
Using unset vs. setting a variable to empty
...
So, by unset'ting the array index 2, you essentially remove that element in the array and decrement the array size (?).
I made my own test..
foo=(5 6 8)
echo ${#foo[*]}
unset foo
echo ${#foo[*]}
Which results in..
3
0
So just to clarify that unse...
Why were pandas merges in python faster than data.table merges in R in 2012?
...ey" in data.table is literally just the sort order (similar to a clustered index in SQL; i.e., that's how the data is ordered in RAM). On the list is to add secondary keys, for example.
In summary, the glaring speed difference highlighted by this particular two-character-column test with over 10,00...
jQuery templating engines [closed]
...bound a object's array? The template would include templating the element indexes of arrays and could be properly serialized for POSTing. But I'm having trouble thinking it all through. The goal is InfoPath-like functionality. (I'm aware of the various existing infopath features and infopath alte...
When converting a project to use ARC what does “switch case is in protected scope” mean?
...t fixed the compile problem:
NSDate *from; /* <----------- */
switch (index) {
....
case 2:
from = [NSDate dateWithTimeIntervalSince1970:1388552400];
[self refreshContents:from toDate:[NSDate date]];
break;
}
...
What's the best way to send a signal to all members of a process group?
... And if you modify the format slightly and sort, you get to see all processes nicely grouped and beginning with (potentially) the group parent in each group: ps x -o "%r %p %y %x %c" | sort -nk1,2
– haridsv
Dec 3 '12 at 12:18
...
Prevent flicker on webkit-transition of webkit-transform [duplicate]
...ateZ(-1px) translateY(180deg);, this resolved the disappearance issue. A z-index issue, but of the 3d space, not dom layering. Tricky.
– KazaJhodo
Oct 26 '17 at 1:43
add a com...