Function isDocumentReady

src/core/document/ready.js:8–14

(doc)

 * @return {boolean}
 */
export function isDocumentReady(doc) {
  return (
    doc.readyState != ReadyState_Enum.LOADING &&
    // IE11-only
    /** @type {string} */ (doc.readyState) != 'uninitialized'
  );
}

/**
 * Whether the document has loaded all the css and sub-resources.