Hi,

I am reading ECMAScript Language Specification Function Calls section

Can someone rephrase or detailed explains the following sentense for me?

The production CallExpression : MemberExpression Arguments is evaluated as follows:

1. Evaluate MemberExpression.

let's take this code as an example.

var john = { 
  name: 'John', 
  greet: function(person) { 
    alert("Hi " + person + ", my name is " + this.name); 
  } 
}; 

john.greet("Mark");

Take above code as an example, what does production CallExpression mean? what is MemberExpression in this case, john.greet?

Thanks!