Method first

src/main/java/org/codehaus/groovy/ast/query/AstQuery.java:272–274

@return the first match in document order, or null; stops at the first match

()

     * @return the first match in document order, or {@code null}; stops at the first match
     */
    public T first() {
        return findFirst().orElse(null);
    }

    /**
     * Performs the given action for each match in document order.