define: DUK_OPT_USER_INITJS introduced: 1.0.0 tags: - portability description: > Provide a string to evaluate when a thread with new built-ins (a new global environment) is created. This allows you to make minor modifications to the global environment before any code is executed in it. The value must be a string, e.g.:: -DDUK_OPT_USER_INITJS='"this.foo = 123"'. Errors in the initialization code result in a fatal error.