Syntax error in IE using ES6 arrow functions

Question

I have this piece of JavaScript code

price = price.replace(/(.*)\\./, x => x.replace(/\\./g,\'\') + \'.\')

This works fine in Firefox an

Answer 1

IE doesn't support ES6, so you'll have to stick with the original way of writing functions like these.

price = price.replace(/(.*)\./, function (x) {
  return x.replace(/\./g, '') + '.';
});

Also, related: When will ES6 be available in IE?

Answer 2

Internet explorer doesn't support arrow functions yet. You can check the browsers supporting arrow functions here.

The method to solve it would be to make a good old regular callback function :

price = price.replace(/(.*)\./, function (x) {
    x.replace(/\./g,'') + '.';
}

This would work in every browser.