rspec/rules/S3833/javascript/rule.adoc

== Why is this an issue?

In the constructor of a derived class, accessing ``++this++`` or ``++super++`` before ``++super()++`` is called raises a reference error. ``++super()++`` should always be called first.


=== Noncompliant code example

[source,javascript]
----
class Bar {
}

class Foo extends Bar {
    constructor() {
        this.val = 0;   // Noncompliant
        super();
    }
}

class Foobar extends Foo {
    constructor() {
        super.val = 1;   // Noncompliant
        super();
    }
}

----


=== Compliant solution

[source,javascript]
----
class Bar {
}

class Foo extends Bar {
    constructor() {
        super();
        this.val = 0;
    }
}

class Foobar extends Foo {
    constructor() {
        super();
        super.val = 1;
    }
}
----



ifdef::env-github,rspecator-view[]

'''
== Implementation Specification
(visible only on this page)

=== Message

Move this statement after the call to "super()" or remove it.


=== Highlighting

Primary: Statement with "this." or "super."

Secondary: Call to "super()"


'''
== Comments And Links
(visible only on this page)

=== on 24 Jan 2017, 13:15:59 Yves Dubois-Pèlerin wrote:
This RSPEC is superseded by RSPEC-3854.

endif::env-github,rspecator-view[]