JavaScript does not have a seed method for its Math.random() method.
When "intellisensing" JavaScript's Math object in an IDE, there is no indication that a seed method exists.
Does the ECMAScript specification say that a seed will be automatically set?
Perhaps when the first script of an HTML page loads or when a browser is started there is an internal call to seed the RNG.
No. The standard makes virtually no requirements about how Math.random is implemented besides this single paragraph:
Returns a Number value with positive sign, greater than or equal to 0 but less than 1, chosen randomly or pseudo randomly with approximately uniform distribution over that range, using an implementation-dependent algorithm or strategy. This function takes no arguments.
