Method key

src/main/java/org/htmlunit/javascript/host/Storage.java:137–149

Returns the key of the specified index. @param index the index @return the key

(final int index)

     * @return the key
     */
    @JsxFunction
    public String key(final int index) {
        if (index >= 0) {
            int counter = 0;
            for (final String key : store_.keySet()) {
                if (counter == index) {
                    return key;
                }
                counter++;
            }
        }
        return null;
    }

    /**
     * Returns the value of the specified key.