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- function checkNested(obj /*, level1, level2, ... levelN*/) {
- var args = Array.prototype.slice.call(arguments, 1);
- for (var i = 0; i < args.length; i++) {
- if (!obj || !obj.hasOwnProperty(args[i])) {
- return false;
- }
- obj = obj[args[i]];
- }
- return true;
- }
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