Getting syntax error using javascript some method

Question

I am getting one error. I am using javascript some method to reject some duplicate value but getting syntax error.I am explaining my code below.

var outputList = [];
for (var i = 0; i < specialImages[0]['special'].length; i++) {
  if (!outputList.some(x => x.image === specialImages[0]['special'][i].image)) {
    var data = {
      image: specialImages[0]['special'][i].image,
      gallery_image: specialImages[0]['special'][i].gallery_image,
      comment: specialImages[0]['special'][i].comment
    };
    outputList.push(data);
  }

In the above code i am getting this error in this if (!outputList.some(x => x.image === specialImages[0]['special'][i].image)) line. Please help me to resolve this error.

Answer 1

Maybe your user agent does not support arrow functions.

Replace arrow function

if (!outputList.some(x => x.image === specialImages[0]['special'][i].image)) {
//                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

with classic function

if (!outputList.some(function (x) { return x.image === specialImages[0]['special'][i].image; })) {