Getting key value pairs of a dictionary in Julia – pairs() Method
The pairs() is an inbuilt function in julia which is used to return an iterator over key=>value pairs for the specified collection that maps a set of keys to a set of values. This includes arrays, where the keys are the array indices.
Syntax:
pairs(collection)
or
pairs(IndexStyle(A), A)Parameters:
- collection: Specified collection.
- IndexStyle(A): Specified iterator.
- A: Specified array.
Returns: It returns an iterator over key=>value pairs for the specified collection that maps a set of keys to a set of values.
Example 1:
# Julia program to illustrate # the use of pairs() method # Getting an iterator over key =>value # pairs for the specified collection # that maps a set of keys to a set of values. A = ["a" "c"; "b" "d"]; println(pairs(A)) |
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Output:
Example 2:
# Julia program to illustrate # the use of pairs() method # Getting an iterator over key =>value # pairs for the specified array A = ["a" "c"; "b" "d"]; for (index, value) in pairs(IndexStyle(A), A) println("$index $value") end |
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Output:
