186. Reverse Words in a String II

[jzhangnu]

var reverseWords = function(str) {
    str.reverse();

    for(var i = 0; i < str.length; i++){
        var j = i;

        while(str[j] !== ' ' && str[j])j++;

        var jj = j - 1, ii = i;

        while(jj > ii){
            [str[ii], str[jj]] = [str[jj], str[ii]];
            ii++;
            jj--;
        }
        //while

        i = j;
    }
    //for
};