formats.exposed/public/png/nodePath.js

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657 B
JavaScript
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// @ts-check
/**
* A node path is an array of indices that can traverse a Node tree.
*
* For example, given the following tree:
*
* ```javascript
* {
* name: "top",
* children: [
* { name: "first" },
* { name: "second", children: [{ name: "grandchild" }] },
* ],
* }
* ```
*
* `[]` is "top", `[0]` is "first", `[1]` is "second", and `[1, 0]` is "grandchild".
*
* @typedef {number[]} NodePath
*/
/**
* @param {unknown} value
* @returns {null | NodePath} The parsed node path, or null if invalid.
*/
export const parse = (value) => {
if (typeof value !== "string") return null;
return value.split(".").map(Number);
};