use propTypes in react function
import React from 'react';
import { PropTypes } from 'prop-types';
const student = (props) => {
return (
<div>
<p>Student Name: {props.name}</p>
<p>Age: {props.age}</p>
</div>
);
};
student.propTypes = {
name: PropTypes.string,
age: PropTypes.number
};
export default student;proptypes oneof
import PropTypes from 'prop-types';
MyComponent.propTypes = {
// You can declare that a prop is a specific JS type. By default, these
// are all optional.
optionalArray: PropTypes.array,
optionalBool: PropTypes.bool,
optionalFunc: PropTypes.func,
optionalNumber: PropTypes.number,
optionalObject: PropTypes.object,
optionalString: PropTypes.string,
optionalSymbol: PropTypes.symbol,
// An object that could be one of many types
optionalUnion: PropTypes.oneOfType([
PropTypes.string,
PropTypes.number,
PropTypes.instanceOf(Message)
])
};install proptypes react
npm install --save prop-typesimport prop-types
import PropTypes from 'prop-types'; // ES6var PropTypes = require('prop-types'); // ES5 with npmreact proptypes
import PropTypes from 'prop-types';
class Greeting extends React.Component {
render() {
return (
<h1>Hello, {this.props.name}</h1>
);
}
}
Greeting.propTypes = {
name: PropTypes.string
};react proptypes example
// proptypes using class component
Detaljer.PropTypes = {
detaljer: PropTypes.string.isRequired,
feilkode: PropTypes.string,
removeEvent: PropTypes.string.isRequired
};
// proptypes using function component
Detaljer.propTypes = {
detaljer: PropTypes.string.isRequired,
feilkode: PropTypes.string,
removeEvent: PropTypes.string.isRequired
};Copyright © 2021 Codeinu
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