https://codeql.github.com/codeql-standard-libraries/javascript/semmle/javascript/Expr.qll/predicate.Expr$ArrayExpr$elementIsOmitted.1.html
elementIsOmitted
API documentation for CodeQL
https://codeql.github.com/codeql-standard-libraries/javascript/semmle/javascript/Variables.qll/predicate.Variables$ArrayPattern$elementIsOmitted.1.html
elementIsOmitted
API documentation for CodeQL