const docEle = document.documentElement;

export function toggleClass(flag: boolean, clsName: string, target?: HTMLElement) {

  const targetEl = target || document.body;

  let { className } = targetEl;

  className = className.replace(clsName, '');

  targetEl.className = flag ? `${className} ${clsName} ` : className;

}



export function setCssVar(prop: string, val: any, dom = docEle) {

  dom.style.setProperty(prop, val);

}