useSelectedItems

Easily select items based on an array.

Installation

With Yarn

yarn add use-selected-items-hook

With NPM

npm install use-selected-items-hook

Usage

import useSelectedItems from "use-selected-items-hook";

   const [
    selectedItems,
    listItems,
    { toggleItem },
   ] = useSelectedItems<ItemType>({
    itemIdentifier: "id",
    items,
  });

  const handleClick = (item) => () => {
    toggleItem(item);
  };

  return (
     {
      listItems.map((item) => {
         // You're able to apply a specify style to a selected item
         const itemClasses = classNames("cursor-pointer border-white border-solid", {
            "border-black": item.selected,
         });

         return (
            <div
               key={item.id}
               className={itemClasses}
               onClick={handleClick(item)}
            >
               <p>
                  {item.name}
               </p>
            </div>
         );
      })
   }
  )

As showed in the example above, you're able to pass an array of items from any type of source, as long it has a unique identifier in
order to compare the items.

API

useSelectedItem

   export type Item<T> = T & {
      selected: boolean
   };

   export interface Actions<T> {
      toggleItem: (T) => void,
      setSelectedItems: Dispatch<SetStateAction<T[]>>,
      setItemsList: Dispatch<SetStateAction<Item<T>[]>>
   }

   useSelectedItems<T>({
      itemIdentifier: string | number,
      items: T[],
   }): [T[], Item<T>[], Actions<T>];

The two arrays returned are the following: selectedItems and listItems.

• selectedItems: The items currently selected and that might be send for an API.
• listItems: The items with the boolean state of selected, which you're able to map and show an visual feedback.

---

The actions allow you to manipulate items.

• toggleItem: Toggle the selected item, by changing the state and pushing or removing from the array.

Builds

• es (EcmaScript module)
• cjs (CommonJS)

GitHub