check if you need just one swap to sort a list of number

oneSwap.js

function isOneSwapSort(A){
	for ( let f = A.length - 1; f > 0; f--) {
	    for (let i=0; i<f; i++) { 
	    	if ( A[f] < A[i] ){
	    		let temp = A[i];
	    		A[i] = A[f];
	    		A[f] = temp;
			if ( isOneSwapSort(A) > 0 ) return 2; //more than one swap
	    		return 1; //one swap
	    	} 
	    }
	}
	return 0 //already sorted
}
function solution(A) {
    var res = isOneSwapSort(A);
	return  res === 0 || res === 1 ? true : false;
}