Identifier Expected while declaring key value array in IE - JavaScript

Question

I have this code:

var arr = "val=value1&val2=value2"; //coming from query string
 var [key, val] = arr.split('=');
 return "." + swapped[key.toLowerCase()][val.toLowerCase()];

however, I am having this error on the second line:

Expected identifier

I am having this issue on IE, it's working fine on chrome/firefox.

Any ideas?

I am doing maintenance for an existing site and they're having this issue on IE.

Edit

Here's the full code I have:

 url = decodeURI(url);
    var swapped = Object.keys(settings).reduce(function (obj, key) {
        obj[key.toLowerCase()] = Object.keys(settings[key]).reduce(function (obj2, key2) {
            obj2[settings[key][key2].toLowerCase()] = key2;
            return obj2;
        }, {});
        return obj;
    }, {});
    return url.toLowerCase().split(/[?&#]/).slice(1).map(function (arg) {
        var [key, val] = arg.split('=');
        return "." + swapped[key.toLowerCase()][val.toLowerCase()];
    });

What other syntax can I replace it with? I am not that familiar with JavaScript — Jacky
– Jacky, Commented Dec 22, 2016 at 0:02
var key = arr.split('=')[0]; var value = arr.split('=')[1]; — Ajay Narain Mathur
– Ajay Narain Mathur, Commented Dec 22, 2016 at 0:04
with [key, value], you assign value at 0 index to key and 1st index to value, assign them separately and it will work in ie too. — Ajay Narain Mathur
– Ajay Narain Mathur, Commented Dec 22, 2016 at 0:05
thanks @A.J, so the next line would like? how do I write it all together? — Jacky
– Jacky, Commented Dec 22, 2016 at 0:06

Jacky · Accepted Answer · 2016-12-22 00:30:52Z

1

The code was written in ES6 as stated in comments, so I converted the code to ES5 using transpiler, and it worked.

answered Dec 22, 2016 at 0:30

Jacky

4371 gold badge4 silver badges15 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Identifier Expected while declaring key value array in IE - JavaScript

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related