To implement Recursive Types within Typescript, you can follow these steps:
Define your base type that will be used in the recursion.
Define the recursive type using the keyword type
, a name for the type, and the type definition.
Replace the base type with the recursive type where the recursion is needed.
Test the code to make sure it is working as intended.
Here is an example of implementing Recursive Types within Typescript:
type ListNode = {
val: number,
next?: ListNode
}
type BinaryTree = {
val: number,
left?: BinaryTree,
right?: BinaryTree
}
type TreeNode = {
val: number,
children?: TreeNode[]
}
// Example usage:
const listNode: ListNode = {
val: 1,
next: {
val: 2,
next: {
val: 3
}
}
}
const binaryTree: BinaryTree = {
val: 1,
left: {
val: 2,
left: {
val: 3
},
right: {
val: 4
}
},
right: {
val: 5,
right: {
val: 6
}
}
}
const treeNode: TreeNode = {
val: 1,
children: [
{
val: 2,
children: [
{
val: 3
},
{
val: 4
}
]
},
{
val: 5
}
]
}
In this example, we've defined three recursive types: ListNode
, BinaryTree
, and TreeNode
. We've also defined a base type for each of the recursive types (ListNode
only has one property, val
, so it could be considered the base type).
We then use these types to create some example data (listNode
, binaryTree
, and treeNode
) to show how the types can be used in practice.
Note: The next
and children
properties of the ListNode
and TreeNode
types are optional, indicating that they can be empty or have multiple elements.
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Asked: 2023-05-23 12:06:33 +0000
Seen: 19 times
Last updated: May 23 '23
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