--- /dev/null
+'use strict';
+
+var eq = require('./eq')
+ , some = require('./some');
+
+module.exports = function (obj, searchValue) {
+ var r;
+ return some(obj, function (value, name) {
+ if (eq(value, searchValue)) {
+ r = name;
+ return true;
+ }
+ return false;
+ }) ? r : null;
+};