function isContainer(productKey) {
    let isContainer = false;
    relations.forEach(element => {
        if (element.container == productKey) {
            isContainer = true;
        }
    });
    return isContainer;
}
/**
 * Checks if a productKey serves as a container for other products
 *
 * @param {*} productKey
 * @returns
 */
Checks if a productKey serves as a container for other products
@param {*} productKey
@returns
Checks if a productKey serves as a container for other products @param { * } productKey @returns
function isContainer(productKey) {
    let isContainer = false;
    relations.forEach(element => {
        if (element.container == productKey) {
            isContainer = true;
        }
    });
    return isContainer;
}
function isContainer ( productKey ) { let isContainer = false ; relations . forEach ( element => { if ( element . container == productKey ) { isContainer = true ; } } ) ; return isContainer ; }
Checks if a productKey serves as a container for other products
 @param {*} productKey
 @returns
Checks if a productKey serves as a container for other products @param { * } productKey @returns