nl_tokens: Returns true if the specified object is one of JS data structures
pl_tokens: function isStructure ( obj ) { if ( ! obj ) { return false ; } if ( isArray ( obj ) || isPlainObject ( obj ) || isMap ( obj ) || isSet ( obj ) ) { return <mask> ; } return isFunction ( obj . constructor ) && ! isNative . test ( obj . constructor . toString ( ) ) ; }