value to test
boolean indicating if a value is a JavaScript boxed primitive
var bool = isBoxedPrimitive( new String( 'beep' ) );
// returns true
var bool = isBoxedPrimitive( new Number( 3.21 ) );
// returns true
var Symbol = require( `@stdlib/symbol/ctor` );
var bool = isBoxedPrimitive( Object( Symbol( 'beep' ) ) );
// returns true
var bool = isBoxedPrimitive( true );
// returns false
var bool = isBoxedPrimitive( {} );
// returns false
var Symbol = require( `@stdlib/symbol/ctor` );
var bool = isBoxedPrimitive( Symbol( 'beep' ) );
// returns false
Tests if a value is a JavaScript boxed primitive.