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I have a set containing a single item, in this case a string:
b = Set(["A"])
I want to get that single item out. What's the best way of doing this? The only way I can figure out to do it is using a loop:
single_item = ""
for item in b
single_item = item
end
which gets my what I need
julia> single_item
"A"
but I feel like there must be an easier way.
366
You can use an Iterator to both obtain the only element as well as verify that the collection only contains one element (thereby avoiding the size() call and the unnecessary list creation): Iterator<Element> iterator = set.
There are three ways in which you can Remove elements from List: Using the remove() method. Using the list object's pop() method. Using the del operator.
Find an element using the list index() method. To find an element in the list, use the Python list index() method, The index() is an inbuilt Python method that searches for an item in the list and returns its index. The index() method finds the given element in the list and returns its position.
how about
julia> collect(b)[1]
"A"
edit
as the legendary Dan Getz suggested, consider doing
julia> collect(take(b,1))[1]
"A"
if memory is an issue
167
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