Is there a similar special flag like --allow-natives-syntax
in Google Chrome? Can this kind of information be accessed using devtools or another method within the browser?
// example code snippet
var person = { name: 'Alice', age: 30 };
console.log(%HasFastProperties(person)); // true (Fast mode)
delete person.name;
console.log(%HasFastProperties(person)); // false (Dictionary mode)