Can a 1D array be utilized to create a 2D grid in React?

Question

Can a 1D array be utilized to create a 2D grid in React?

I needed to display a one-dimensional array in a 2D grid format with 3 rows and 3 columns. The array itself contains numbers from 1 to 9.

const array = Array.from({ length: 9 }, (_, i) => i + 1);

In my React component, I have it rendering as a series of div elements:

export default function App() {
  return (
    <div className="App">
      <div className="grid">
        {array.map((cell) => (
          <div className="cell">{cell}</div>
        ))}
      </div>
    </div>
  );
}

Currently, the cells are displayed stacked on top of each other as expected. I'm curious if there's a way to arrange them into a 3 x 3 grid using only CSS styles, without modifying the existing DOM structure.

javascript html css reactjs

Answer 1

Answer №1

Indeed, this discussion revolves around CSS Grid. Here is a basic HTML/CSS example that can be effortlessly transformed into React:

<!DOCTYPE html>
<html>
<head>
<style>
.grid {
  display: grid;
  grid-template-columns: auto auto auto;
  background-color: #2196F3;
  padding: 10px;
}
.cell {
  background-color: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(0, 0, 0, 0.8);
  padding: 20px;
  font-size: 30px;
  text-align: center;
}
</style>
</head>
<body>
<h1>Grid Elements</h1>

<div class="grid">
  <div class="cell">1</div>
  <div class="cell">2</div>
  <div class="cell">3</div>  
  <div class="cell">4</div>
  <div class="cell">5</div>
  <div class="cell">6</div>  
  <div class="cell">7</div>
  <div class="cell">8</div>
  <div class="cell">9</div>  
</div>

</body>
</html>

Answer 2

Indeed, this discussion revolves around CSS Grid. Here is a basic HTML/CSS example that can be effortlessly transformed into React:

<!DOCTYPE html>
<html>
<head>
<style>
.grid {
  display: grid;
  grid-template-columns: auto auto auto;
  background-color: #2196F3;
  padding: 10px;
}
.cell {
  background-color: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(0, 0, 0, 0.8);
  padding: 20px;
  font-size: 30px;
  text-align: center;
}
</style>
</head>
<body>
<h1>Grid Elements</h1>

<div class="grid">
  <div class="cell">1</div>
  <div class="cell">2</div>
  <div class="cell">3</div>  
  <div class="cell">4</div>
  <div class="cell">5</div>
  <div class="cell">6</div>  
  <div class="cell">7</div>
  <div class="cell">8</div>
  <div class="cell">9</div>  
</div>

</body>
</html>

Answer 3

Answer №2

  display: grid;
  grid-template-columns: auto auto auto;
  background-color: #2196f3;
  padding: 10px;
}
.grid-item {
  background-color: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(0, 0, 0, 0.8);
  padding: 20px;
  font-size: 30px;
  text-align: center;
}

import "./styles.css";
const array = Array.from({ length: 9 }, (_, i) => i + 1);

export default function App() {
  return (
    <div className="App">
      <div className="grid-container">
        {array.map((cell) => (
          <div className="grid-item">{cell}</div>
        ))}
      </div>
    </div>
  );
}

https://codesandbox.io/s/busy-panka-mf4rhv?file=/src/App.js:0-314

Answer 4

  display: grid;
  grid-template-columns: auto auto auto;
  background-color: #2196f3;
  padding: 10px;
}
.grid-item {
  background-color: rgba(255, 255, 255, 0.8);
  border: 1px solid rgba(0, 0, 0, 0.8);
  padding: 20px;
  font-size: 30px;
  text-align: center;
}

import "./styles.css";
const array = Array.from({ length: 9 }, (_, i) => i + 1);

export default function App() {
  return (
    <div className="App">
      <div className="grid-container">
        {array.map((cell) => (
          <div className="grid-item">{cell}</div>
        ))}
      </div>
    </div>
  );
}

https://codesandbox.io/s/busy-panka-mf4rhv?file=/src/App.js:0-314

Answer 5

Answer №3

Here's a neat demonstration showcasing the use of CSS grid for designing a layout using array.map().

You can execute it from this code snippet:

const array = Array.from({ length: 9 }, (_, i) => i + 1);

const App = () =>
<div className="App">
  <div className="grid">
    {array.map((cell, index) => (
    <div className="cell" key={cell}>{cell}</div>
    ))}
  </div>
</div>

ReactDOM.render(<App />, document.querySelector('#root'));

.grid {
 display: grid;
 grid-template-columns: repeat(3, 50px);
 grid-template-rows: repeat(3, 50px);
}

.cell {
  display: flex;
  justify-content: center;
  align-items: center;
  color: #333;
  background-color: pink;
}

.cell:nth-child(even) {
  color: #fff;
  background-color: hotpink;
}

<div id="root"></div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/18.1.0/umd/react.production.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/18.1.0/umd/react-dom.production.min.js"></script>

Answer 6

Here's a neat demonstration showcasing the use of CSS grid for designing a layout using array.map().

You can execute it from this code snippet:

const array = Array.from({ length: 9 }, (_, i) => i + 1);

const App = () =>
<div className="App">
  <div className="grid">
    {array.map((cell, index) => (
    <div className="cell" key={cell}>{cell}</div>
    ))}
  </div>
</div>

ReactDOM.render(<App />, document.querySelector('#root'));

.grid {
 display: grid;
 grid-template-columns: repeat(3, 50px);
 grid-template-rows: repeat(3, 50px);
}

.cell {
  display: flex;
  justify-content: center;
  align-items: center;
  color: #333;
  background-color: pink;
}

.cell:nth-child(even) {
  color: #fff;
  background-color: hotpink;
}

<div id="root"></div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/18.1.0/umd/react.production.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/18.1.0/umd/react-dom.production.min.js"></script>

Can a 1D array be utilized to create a 2D grid in React?

Answer №1

Answer №2

Answer №3

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