When an alternation contains multiple alternatives that consist of a single character, it can be rewritten as a character class. This should be
preferred because it is more efficient and can even help prevent stack overflows when used inside a repetition (see rule S5998).
Noncompliant code example
/a|b|c/; // Noncompliant
Compliant solution
/[abc]/;
// or
/[a-c]/;
