Swap Endianness in Javascript with this simple Function

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How to easily swap or change endianness in Javascript, NodeJS, etc. with one simple function! changeEndianness()

          const changeEndianness = (string) => {
                  const result = [];
                  let len = string.length - 2;
                  while (len >= 0) {
                    result.push(string.substr(len, 2));
                    len -= 2;
                  }
                  return result.join('');
          }

You can then use this function with any string to convert its endianness

Example of using function:

var yourstringvar = 'Your string goes here to swap endianness';

var newendian = changeEndianness(yourstringvar);

console.log('Your newly swapped endian string', newendian);