// then we do not write-on-read
const defaultValue = {
    name: 'All',
    isSelected: true,
};
/**
 * @hack @@demo @rue21 transformedDropDown scoped for @@perf
 * ^ I think `SelectDropDown` makes duplicates
 *
 * @todo isn't this just filter?
 * this is to hide the default value?
 * or is it to filter categories without children?
 * @todo should be in state
 * @todo should put hiding currently selected option from dropdown in select dropdown
 */
let transformedDropDown = undefined;
function toDropDownCategories(categoryList) {
    if (transformedDropDown !== undefined) {
        return transformedDropDown;
    }
    transformedDropDown = categoryList
        .filter(item => item.categories.length)
        .slice(0)
        .concat([defaultValue])
        .map(item => {
        // "name" is so 2017
        item.label = item.name;
        return item;
    });
}
export { toDropDownCategories };
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