Functional Programming with ReasonML/

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Further List Operations

Further List Operations

Let's explore more features of the list data structure!

We'll cover the following...

Appending a List

A list can be appended to another list using the spread operator. Here’s how it works:

Reason
let myList = [5, 6, 7, 8];
Js.log([1, 2, 3, 4, ...myList]);

Console: [1,[2,[3,[4,[5,[6,[7,[8,0]]]]]]]]

However, the code below would not create the correct structure:

Reason
let list1 = [1, 2, 3, 4];
let list2 = [5, 6, 7, 8];
Js.log([list1, ...[list2]]);

Output: [[1,[2,[3,[4,0]]]],[[5,[6,[7,[8,0]]]],0 ...