javascript ForeachSíncronoJS

Posted 2021-05-03

function forEachSync(array, callback) {
  let lastIndex = array.length - 1;
  let startIndex = 0;

  return new Promise((resolve, reject) => {
    // Finish all
    let functionToIterateWith = currIndex => {
      if (currIndex > lastIndex) {
        return resolve();
      } else {
        callback(array[currIndex])
          .then(() => {
            functionToIterateWith(currIndex + 1);
          })
          .catch(err => reject(err));
      }
    };

    functionToIterateWith(startIndex);
  });
}

// Uso
 await forEachSync(viewPorts, ()=>{
   //calback
 })