Question

I am working in jQuery and I need to compare two arrays of strings which are as follows:

var A = ['dada','adad','a','s','rrrrrrrr'];

var B = ['dada','adad','a','s'];
C = [];

I need to compare those two arrays of strings and I need to get the difference, i.e the ‘rrrrrrr’ value after the compare.

$.each(A, function (i, e) {
     if ($.inArray(e, B) == -1) C.push(e);
); 
alert(C);

My output is:

C= r,r,r,r,r,r,r,r,r,r

However, I expected this output:

C=rrrrrrrrrr

Answer 1

function exclusive(a,b){
    var c = [];

    $.each(a, function(){
        var self = this.toString();

        if(b.indexOf(self) === -1){
            c.push(self);
        }
    });

    return c;
}

Example:

var A = ['dada','adad','a','s','rrrrrrrr'];

var B = ['dada','adad','a','s'];

exclusive(A,B)

[“rrrrrrrr”]