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.

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

Error is : Expected ')'

Answer 1

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;
}