rspec/rules/S4157/javascript/rule.adoc

== Why is this an issue?

There's no reason to repeat a default type unless it is early in a list and other, non-default types come after it. Instead, leave it out and only supply type when it is something other than the default.


=== Noncompliant code example

[source,javascript]
----
function foo<N = number, S = string>() {}
foo<number, string>();  // Noncompliant; both types redundant
foo<string, string>();  // Noncompliant; 2nd string is redundant
foo<number, number>();  // Ignored; number is redundant but required
----


=== Compliant solution

[source,javascript]
----
function foo<N = number, S = string>() {}
foo();
foo<string>();
foo<number, number>();
----

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

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

=== Message

Drop this duplicate type parameter; it is the default.


=== Highlighting

the type


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