// parameters are associated correctly
const retained1 = function ( func, obj ) { return func( obj ); };
retained1( obj => obj(), () => () => console.log( 'effect' ) )();

const retained2 = function ( func, obj ) { return func( obj ); };
retained2( obj => ({ foo: obj }), {} ).foo.bar.baz = 1;

// parameters and arguments have the same values
function retained3 ( x ) {
	x.foo.bar = 1;
}

retained3( {} );

function retained4 ( x ) {
	arguments[ 0 ].foo.bar = 1;
}

retained4( {} );

// assigning to an argument will change the corresponding parameter
function retained5 ( x ) {
	arguments[ 0 ] = {};
	x.foo.bar = 1;
}

retained5( { foo: {} } );

// assigning to a parameter will change the corresponding argument
function retained6 ( x ) {
	x = {};
	arguments[ 0 ].foo.bar = 1;
}

retained6( { foo: {} } );

// the number of arguments does not depend on the number of parameters
function retained7 ( x ) {
	arguments[ 1 ].foo.bar = 1;
}

retained7( {}, {} );
