a very basic Array question but I don't know how to do this in the best possible way.
I have an array
var pathArr = [element1, element2, element3, element4, element5, element6]
what can I do if I want to select multiple elements of this path at once.
Lets say:
pathArr[0-2].dofunction()
in this example I'm doing the function on the first three elements.
or
pathArr[1,6].dofunction()
in this example only on element1 and element6
Is there something I can do with an array?
No.
Iterate through your array and apply your method to each appropriate item.
You could use slice to return a range of items in an array, which might make it easier for you, depending on what you're doing.
slice is only helpful for the first example, since the elements are a contiguous subsequence.Nowadays you can solve this easily with the following one liners:
pathArr.slice(0,2).forEach(x=>dofunction(x))
To select multiple elements from the array you can use a map function, like so:
[1,6].map(x=>pathArr[x]).forEach(x=>dofunction(x))
