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How do I iterate through children elements of a div using jQuery?
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@SouvikGhosh: the index is passed as the first argument to the callback function for each(). Check the docs, linked in the answer above.
– Andy E
Sep 22 '16 at 8:33
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How to delete a folder with files using Java
... files before deleting the folder.
Use something like:
String[]entries = index.list();
for(String s: entries){
File currentFile = new File(index.getPath(),s);
currentFile.delete();
}
Then you should be able to delete the folder by using index.delete()
Untested!
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How to get indices of a sorted array in Python
...[0, 1, 2, 4, 3]
enumerate(myList) gives you a list containing tuples of (index, value):
[(0, 1), (1, 2), (2, 3), (3, 100), (4, 5)]
You sort the list by passing it to sorted and specifying a function to extract the sort key (the second element of each tuple; that's what the lambda is for. Finall...
How do I pass multiple parameters in Objective-C?
...For example, if you are adding an object to an NSMutableArray at a certain index, you would do it using the method:
- (void)insertObject:(id)anObject atIndex:(NSUInteger)index;
This method is called insertObject:atIndex: and it is clear that an object is being inserted at a specified index.
In p...
Which CheckedListBox event triggers after a item is checked?
...= CheckState.Checked)
checkedItems.Add(checkedListBox1.Items[e.Index].ToString());
else
checkedItems.Remove(checkedListBox1.Items[e.Index].ToString());
foreach (string item in checkedItems)
{
...
}
}
As another example, to de...
Converting RGB to grayscale/intensity
...ixel
unsigned int fourBytes;
unsigned char r,g,b;
for (int index=0;index<width*height;index++)
{
fourBytes=pntrBWImage[index];//caches 4 bytes at a time
r=(fourBytes>>16);
g=(fourBytes>>8);
b=fourBytes;
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What is the Simplest Way to Reverse an ArrayList?
...n't need to be updated with each iteration. It is initialized to the last index of the ArrayList and is used to access the last element. Inside the for loop the last element is removed and inserted into index i; i is incremented until it reaches the next to last position in the ArrayList.
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NSInvocation for Dummies?
... any arguments for that method:
[myInvocation setArgument:&myString atIndex:2];
Note that object arguments must be passed by pointer. Thank you to Ryan McCuaig for pointing that out, and please see Apple's documentation for more details.
At this point, myInvocation is a complete object, desc...
Select something that has more/less than x character
...). In Oracle, and probably in all other RDBMSs, this means that a regular index on EmployeeName will be useless to answer this query; the database will do a full table scan, which can be really costly.
However, various databases offer a function indexes feature that is designed to speed up queries...
MySQL Removing Some Foreign keys
...he foreign key constraint has to be dropped by constraint name and not the index name. The syntax is:
alter table footable drop foreign key fooconstraint
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