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Nov 25th, 2015
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  1. function search(needle, haystack) {
  2. var quen = [{
  3. obj: haystack,
  4. path: ''
  5. }];
  6. var curObj;
  7. while (curObjItem = quen.shift()) {
  8. var curPath = curObjItem.path;
  9. var curObj = curObjItem.obj;
  10. for (var i in curObj) {
  11. if (needle === curObj[i]) {
  12. return curPath + '.' + i;
  13. }
  14. if (typeof curObj[i] === 'object') {
  15. var newPath;
  16. if (Array.isArray(curObj)) {
  17. newPath = curPath + '[' + i + 'i';
  18. } else {
  19. newPath = curPath + '.' + i
  20. }
  21. quen.push({
  22. obj: curObj[i],
  23. path: curPath + '.' + i
  24. });
  25. }
  26. }
  27. }
  28. }
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