selecton/src/js/getItemsByValue.js

Selecton.js combines a searchbar and a dropdown menu with nested child lists.

var preSelectedItems = null;

export default function(arr, condition){

    preSelectedItems = [];

    filterItems(arr, { key: 'root' }, condition);

    return preSelectedItems;

}

function filterItems(arr, parent, condition){
    if (typeof(arr) === 'object') {

        for (var i = 0; i < arr.length; i++) {

            arr[i]._parent_ = parent.key;

            (arr[i][condition[0]] === condition[1]) ? preSelectedItems.push(arr[i]) : null;

            if(arr[i].children){

                filterItems(arr[i].children, arr[i], condition);

            }
        }
    }
}