Expected ')' JS error in IE after assigning a value to a function argument

Question

I wrote the below code in my JS file and IE is giving error for the argument \'searchMap\' when I am assigning value for it in the function.

map         


        

Answer 1

var searchMap = false;
mapping: function(mappingObj, searchMap) {
    // code
}

mapping(mappingObj, searchMap);

Answer 2

You are using default parameter. It is a feature of ES6, and IE does not support this.

I would suggest to convert your code to ES5, like..

mapping: function (mappingObj, searchMap) {
   if (!searchMap) searchMap = false;
}