nl_tokens: / * exported toDebugString
pl_tokens: function serializeObject ( obj , maxDepth ) { var <mask> = [ ] ; // There is no direct way to stringify object until reaching a specific depth // and a very deep object can cause a performance issue, so we copy the object // based on this specific depth and then stringify it. if ( isValidObjectMaxDepth ( maxDepth ) ) { // This file is also included in `angular-loader`, so `copy()` might not always be available in // the closure. Therefore, it is lazily retrieved as `angular.copy()` when needed. obj = angular . copy ( obj , null , maxDepth ) ; } return JSON . stringify ( obj , function ( key , val ) { val = toJsonReplacer ( key , val ) ; if ( isObject ( val ) ) { if ( seen . indexOf ( val ) >= 0 ) return '...' ; seen . push ( val ) ; } return val ; } ) ; }