{"id":58,"date":"2025-01-21T05:13:00","date_gmt":"2025-01-21T05:13:00","guid":{"rendered":"https:\/\/techkubo.com\/react\/?p=58"},"modified":"2025-05-19T08:30:41","modified_gmt":"2025-05-19T08:30:41","slug":"react-props","status":"publish","type":"post","link":"https:\/\/techkubo.com\/react\/react-props\/","title":{"rendered":"React Props"},"content":{"rendered":"\n

Props, short for properties, are arguments passed into React components. They are similar to function arguments in JavaScript and HTML attributes.<\/p>\n\n\n\n

<\/p>\n\n\n\n

Passing Props to Components<\/h2>\n\n\n\n

Props are passed to components using HTML-like attributes. In this example, the type<\/code> attribute is passed to the Vehicle<\/code> component.<\/p>\n\n\n\n

const myElement = <Vehicle type="Car" \/>;<\/pre><\/div>\n\n\n\n
<\/p>\n\n\n\n
Receiving Props in Components<\/h2>\n\n\n\n
The component receives the prop as a props<\/code> object. Here’s how to use the type<\/code> attribute in the component:<\/p>\n\n\n\n
function Vehicle(props) {\n  return <h2>This is a {props.type}.<\/h2>;\n}\n\nexport default Vehicle;<\/pre><\/div>\n\n\n\n
<\/p>\n\n\n\n
Passing Data Between Components<\/h2>\n\n\n\n
Props can also be used to pass data from one component to another. Here\u2019s an example of passing a type<\/code> property from the Garage<\/code> component to the Vehicle<\/code> component:<\/p>\n\n\n\n
function Vehicle(props) {\n  return <h2>This is a {props.type}.<\/h2>;\n}\n\nfunction Garage() {\n  return (\n    <>\n      <h1>What's in the garage?<\/h1>\n      <Vehicle type="Car" \/>\n    <\/>\n  );\n}\n\nconst root = ReactDOM.createRoot(document.getElementById('root'));\nroot.render(<Garage \/>);<\/pre><\/div>\n\n\n\n
<\/p>\n\n\n\n
Using Variables as Props<\/h2>\n\n\n\n
If you need to pass a variable instead of a string, use curly brackets. Here’s how to send a variable named vehicleType<\/code> to the Vehicle<\/code> component:<\/p>\n\n\n\n
function Vehicle(props) {\n  return <h2>This is a {props.type}.<\/h2>;\n}\n\nfunction Garage() {\n  const vehicleType = "Truck";\n  return (\n    <>\n      <h1>What's in the garage?<\/h1>\n      <Vehicle type={vehicleType} \/>\n    <\/>\n  );\n}\n\nconst root = ReactDOM.createRoot(document.getElementById('root'));\nroot.render(<Garage \/>);<\/pre><\/div>\n\n\n\n
<\/p>\n\n\n\n
Using Objects as Props<\/h2>\n\n\n\n
You can also pass an object as a prop. Here’s how to send an object named vehicleInfo<\/code> to the Vehicle<\/code> component:<\/p>\n\n\n\n
function Vehicle(props) {\n  return <h2>This is a {props.info.model}.<\/h2>;\n}\n\nfunction Garage() {\n  const vehicleInfo = { name: "Truck", model: "Ford" };\n  return (\n    <>\n      <h1>What's in the garage?<\/h1>\n      <Vehicle info={vehicleInfo} \/>\n    <\/>\n  );\n}\n\nconst root = ReactDOM.createRoot(document.getElementById('root'));\nroot.render(<Garage \/>);<\/pre><\/div>\n\n\n\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
Props, short for properties, are arguments passed into React components. 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