JSFiddle - React, Tailwind, and code Playground

[ASSIGNMENT] Close Frontend Application Quiz

by Alamin254

HTML

<script src="https://unpkg.com/react@16/umd/react.development.js"></script>
<script src="https://unpkg.com/react-dom@16/umd/react-dom.development.js"></script>
<div id="root"></div>

CSS

.List {
  margin: 16px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  grid-auto-rows: 60px;
  grid-gap: 16px;
}

.List__item {
  line-height: 60px;
  text-align: center;
  color: white;
  text-shadow: 1px 1px rgba(0, 0, 0, 0.5);
  box-shadow: 0px 1px 1px 0px rgba(0, 0, 0, 0.05);
}
ul li:not(.List) {
  list-style: none;
  border: 5px solid blue;
  margin-top: 10px;
}

/* Taken from https://clrs.cc/ */

.List__item--navy {
  background-color: #001f3f;
}

.List__item--blue {
  background-color: #0074d9;
}

.List__item--aqua {
  background-color: #7fdbff;
}

.List__item--teal {
  background-color: #39cccc;
}

.List__item--olive {
  background-color: #3d9970;
}

.List__item--green {
  background-color: #2ecc40;
}

.List__item--lime {
  background-color: #01ff70;
}

.List__item--yellow {
  background-color: #ffdc00;
}

.List__item--orange {
  background-color: #ff851b;
}

.List__item--red {
  background-color: #ff4136;
}

.List__item--maroon {
  background-color: #85144b;
}

.List__item--fuchsia {
  background-color: #f012be;
}

.List__item--purple {
  background-color: #b10dc9;
}

.List__item--black {
  background-color: #111111;
}

.List__item--gray {
  background-color: #aaaaaa;
}

.List__item--silver {
  background-color: #dddddd;
}

React

const { Fragment, useEffect, useState, useRe } = React;


// Implement a feature to allow item selection with the following requirements:
// 1. Clicking an item selects/unselects it.
// 2. Multiple items can be selected at a time.
// 3. Make sure to avoid unnecessary re-renders of each list item in the big list (performance).
// 4. Currently selected items should be visually highlighted.
// 5. Currently selected items' names should be shown at the top of the page.
//
// Feel free to change the component structure at will.

const List = ({ items }) => {
const [itemSelect, setItemSelect] = useState('')
  //push the items to the list once selected
  const [selected, setSelected] = useState([])
  //check if element was clicked before 
  const [isClicked, setIsClicked] = useState(false)

  const OnSelectionItem = (selectedItem) => {
    // avoiding adding same item in array
    while (
      !selected.includes(selectedItem)
    )

      selected.push(selectedItem)
      console.log(selected)
      setSelected(selected)

      return setItemSelect(selectedItem)
    // window.alert("😀😀😀😀")
  }

  // setIsClicked(current => !current)
  // const isFirstRender = useRef(true)
  // useEffect(() => {
  //   setIsClicked = true
  // }, [isClicked])


 

  return (
    <Fragment>
    <ul className="selected__list">
     {selected.map(itemSelect => (
        <li key={itemSelect.name}>{itemSelect.name}</li>
     ))}
    </ul>
      <ul className="List">
        {items.map(item => (
          <li key={item.name} className={`List__item List__item--${item.color}`}
            style={selected.includes(item)  ? { backgroundColor: 'rgb(187, 46, 31)', border: '7px solid red ', fontSize: '20px', fontWeight: 'bold' } : null}
            onClick={() => OnSelectionItem(item)} >
            {item.name}
          </li>
        ))}
      </ul>
    </Fragment>
  )
  }

// ---------------------------------------
// Do NOT change anything below this line.
//...