Как найти уникальные записи из двух разных массивов в jquery или javascript?

I want to get unique values from two different arrays.

Two arrays are as below in JavaScript:

<script>
var a=new Array;
var b=new Array;
a={'a','b','c','d','e'}
b={'a','d','e','c'} 
</script>

I want output like:

new array => {'a','c','d','e'}

How can I find unique records from both arrays using JavaScript prototype function or jQuery function?