pointer

setPointer writes a value into an object at a JSON Pointer path such as "/a/b". The dashboard uses it to put the data each binding fetches into the state of a widget's spec. You can also use it in a plugin whenever you need to update a nested object by path.

Source: packages/sdk/src/pointer.ts.

/** Minimal JSON-pointer write ("/a/b") used to place binding results into widget state. */
function setPointer(target: Record<string, unknown>, pointer: string, value: unknown): Record<string, unknown>;

It behaves as follows:

• It returns a new object and leaves target unchanged. Every object along the path is copied.
• A missing value, or a value that is not an object, on the way is replaced with {}.
• In keys, ~1 decodes to / and ~0 decodes to ~.
• An empty pointer ("") returns target unchanged.

setPointer({ form: { amount: '50' } }, '/card/balance', 12.5);
// → { form: { amount: '50' }, card: { balance: 12.5 } }