javascript - Syntax error in IE using ES6 arrow functions - Stack Overflow

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I have this piece of JavaScript code

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

This works fine in Firefox and Chrome, however IE gives me an syntax error pointing at => in my code.

Is there a way to use ES6 arrow syntax in IE?

I have this piece of JavaScript code

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

This works fine in Firefox and Chrome, however IE gives me an syntax error pointing at => in my code.

Is there a way to use ES6 arrow syntax in IE?

• javascript
• regex
• internet-explorer
• ecmascript-6

Share Improve this question Follow edited Oct 18, 2016 at 13:57 user229044♦ 239k4141 gold badges344344 silver badges346346 bronze badges asked Oct 18, 2016 at 13:46 Michael Tot KorsgaardMichael Tot Korsgaard 4,0141111 gold badges5656 silver badges9393 bronze badges 2

• 2 Until IE wants to become happy, use anonymous method inside replace. – Wiktor Stribiżew Commented Oct 18, 2016 at 13:47
• 3 Use a transpiler or write ES5 code in the first place. – Bergi Commented Oct 18, 2016 at 13:48

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2 Answers 2

Sorted by: Reset to default 21

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?

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.

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