Are there constants in JavaScript?

Question

Is there a way to use constants in JavaScript?

If not, what\'s the common practice for specifying variables that are used as constants?

Answer 1

Clearly this shows the need for a standardized cross-browser const keyword.

But for now:

var myconst = value;

or

Object['myconst'] = value;

Both seem sufficient and anything else is like shooting a fly with a bazooka.