JSFiddle - React, Tailwind, and code Playground

by Vladymyr Shevchuk

Babel + JSX

const isElemHasClass = (notAllowedClasses, elemClasses) => {
    let finderMatch = false;
    notAllowedClasses.forEach((singleClass) => {
      console.error('elemClasses', elemClasses, typeof elemClasses);
      if (elemClasses.contains(singleClass)) {
        finderMatch = true;
      }
    });
    return finderMatch;
  };

  const notAllowedClasses = ['foo', 'bar'];

  console.error(isElemHasClass(notAllowedClasses, ['riba']));