Skip to main content

DEEP_FREEZE()

Recursive Object.freeze.

DEEP_FREEZE is a global function accessible to all hackmud scripts. DEEP_FREEZE performs a recursive Object.freeze on a given JavaScript object. Frozen objects are unable to be written to or modified in any way. This function returns the same object that was passed in.

Syntax​

DEEP_FREEZE(object);

Arguments​

object​

The object to freeze.

Example​

Let user.deepfreeze be a hypothetical user script, using DEEP_FREEZE to return an object that cannot be tampered with.

function(context, args) {
  let obj = {}

  obj.foo = "bar"
  obj.baz = {quz:"quux"}

  return DEEP_FREEZE(obj)
}

When subscripting user.deepfreeze, the object returned is immutable.

function(context, args) {
  let obj = #fs.user.deepfreeze()

  obj.baz = true // :::TRUST COMMUNICATION::: TypeError: "baz" is read-only
}