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casic-smartcity-well-front / static / Cesium / Widgets / getElement.js
[wangxitong] on 8 Jul 2021 696 bytes mars3d总览
import DeveloperError from "../Core/DeveloperError.js";

/**
 * If element is a string, look up the element in the DOM by ID.  Otherwise return element.
 *
 * @private
 *
 * @exception {DeveloperError} Element with id "id" does not exist in the document.
 */
function getElement(element) {
  if (typeof element === "string") {
    var foundElement = document.getElementById(element);

    //>>includeStart('debug', pragmas.debug);
    if (foundElement === null) {
      throw new DeveloperError(
        'Element with id "' + element + '" does not exist in the document.'
      );
    }
    //>>includeEnd('debug');

    element = foundElement;
  }
  return element;
}
export default getElement;