Function shouldUseCssText

src/index.ts:288–299

* Checks to see if styleSheet exists as a property off of a style element. * This will determine if style registration should be done via cssText (<= IE9) or not

()

 * This will determine if style registration should be done via cssText (<= IE9) or not
 */
function shouldUseCssText(): boolean {
  let useCSSText: boolean = false;

  if (typeof document !== 'undefined') {
    const emptyStyle: IExtendedHtmlStyleElement = document.createElement('style') as IExtendedHtmlStyleElement;

    emptyStyle.type = 'text/css';
    useCSSText = !!emptyStyle.styleSheet;
  }

  return useCSSText;
}