CesiumJS Core Utilities & Networking

Version baseline: CesiumJS v1.142+ (ES module imports, defaultValue removed in v1.134)

Breaking Change: defaultValue Removed (v1.134)

// WRONG (removed in v1.134)
const name = defaultValue(options.name, "default");
const opts = defaultValue(options, defaultValue.EMPTY_OBJECT);

// CORRECT (v1.134+)
import { Frozen } from "cesium";
const name = options.name ?? "default";
const opts = options ?? Frozen.EMPTY_OBJECT;

Frozen.EMPTY_OBJECT is Object.freeze({}) and Frozen.EMPTY_ARRAY is Object.freeze([]). Use them as safe defaults for options objects and array parameters.

Resource: HTTP Requests and Data Fetching