It is highly suspicious when a value is saved for a key or index and then unconditionally overwritten. Such replacements are likely in error. == Noncompliant Code Example [source,javascript] ---- fruits[1] = "banana"; fruits[1] = "apple"; // Noncompliant - value on index 1 is overwritten myMap.set("key", 1); myMap.set("key", 2); // Noncompliant - value for key "key" is replaced mySet.add(1); mySet.add(1); // Noncompliant - element is already in the set ---- ifdef::env-github,rspecator-view[] ''' == Implementation Specification (visible only on this page) include::../message.adoc[] include::../highlighting.adoc[] ''' == Comments And Links (visible only on this page) include::../comments-and-links.adoc[] endif::env-github,rspecator-view[]