permutations.js

// Permute the string using Heap's algorithm https://en.wikipedia.org/wiki/Heap%27s_algorithm
var perm = function(list, n){
    if(n==1){
        var inputString = list.join('');
        console.log(inputString);
    } else {
        for(var c=0;c<n;c++){
            perm(list,n-1);
            if(n%2===0){
                var temp1=list[c];
                list[c]=list[list.length-1];
                list[list.length-1]=temp1;
             }else{
                var temp2=list[0];
                list[0]=list[list.length-1];
                list[list.length-1]=temp2;
            }
        }
    }
};