- for (i = 0; i < edits.length; ++i) {
- edit = edits[i];
- switch (edit[0]) {
- case "sub":
- s = s.slice(0, edit[1]) + edit[2] + s.slice(edit[1] + 1);
- break;
- case "ins":
- s = s.slice(0, edit[1]) + edit[2] + s.slice(edit[1]);
- break;
- case "del":
- s = s.slice(0, edit[1]) + s.slice(edit[1] + 1);
- break;
- }
+ for (i = 0; i < diff.length; ++i) {
+ edit = diff[i];
+ var head = source.slice(0, edit[1]);
+ var tail = source.slice(edit[1] + edit[0]);
+ source = head + edit[2] + tail;