cesium/Source/ThirdParty/GltfPipeline/usesExtension.js

CesiumJS is a JavaScript library for creating 3D globes and 2D maps in a web browser without a plugin.

import defined from "../../Core/defined.js"

/**
 * Checks whether the glTF uses the given extension.
 *
 * @param {Object} gltf A javascript object containing a glTF asset.
 * @param {String} extension The name of the extension.
 * @returns {Boolean} Whether the glTF uses the given extension.
 *
 * @private
 */
function usesExtension(gltf, extension) {
    return defined(gltf.extensionsUsed) && (gltf.extensionsUsed.indexOf(extension) >= 0);
}

export default usesExtension;