An Object initializer is a comma-delimited list of zero or more pairs of property names and associated values of an Object, enclosed in curly braces ({}). Objects can also be initialized using Object.create() or by invoking a constructor function with the new operator...."C"]; const obj = { [items]: "Hello", }; console.log(obj); // A,B...B,C: "Hello" console.log(obj["A,B,C"]); // "Hello" const param...