npm prop-types

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Drab Dove answered on August 27, 2020 Popularity 10/10 Helpfulness 5/10

answer npm prop-types

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npm prop-types

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npm install --save prop-types

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Source: www.npmjs.com

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Contributed on Mar 24 2022

Drab Dove

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install proptypes react

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npm install --save prop-types

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Source: www.npmjs.com

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Contributed on Dec 23 2020

Rich Rhinoceros

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install prop-types in react js

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// npm
npm install prop-types

// yarn

yarn add prop-types

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Contributed on Jan 23 2023

Masud

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reactnode prop-types

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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,

  // Anything that can be rendered: numbers, strings, elements or an array
  // (or fragment) containing these types.
  optionalNode: PropTypes.node,

  // A React element.
  optionalElement: PropTypes.element,

  // A React element type (ie. MyComponent).
  optionalElementType: PropTypes.elementType,

  // You can also declare that a prop is an instance of a class. This uses
  // JS's instanceof operator.
  optionalMessage: PropTypes.instanceOf(Message),

  // You can ensure that your prop is limited to specific values by treating
  // it as an enum.
  optionalEnum: PropTypes.oneOf(['News', 'Photos']),

  // An object that could be one of many types
  optionalUnion: PropTypes.oneOfType([
    PropTypes.string,
    PropTypes.number,
    PropTypes.instanceOf(Message)
  ]),

  // An array of a certain type
  optionalArrayOf: PropTypes.arrayOf(PropTypes.number),

  // An object with property values of a certain type
  optionalObjectOf: PropTypes.objectOf(PropTypes.number),

  // An object taking on a particular shape
  optionalObjectWithShape: PropTypes.shape({
    color: PropTypes.string,
    fontSize: PropTypes.number
  }),

  // An object with warnings on extra properties
  optionalObjectWithStrictShape: PropTypes.exact({
    name: PropTypes.string,
    quantity: PropTypes.number
  }),   

  // You can chain any of the above with `isRequired` to make sure a warning
  // is shown if the prop isn't provided.
  requiredFunc: PropTypes.func.isRequired,

  // A required value of any data type
  requiredAny: PropTypes.any.isRequired,

  // You can also specify a custom validator. It should return an Error
  // object if the validation fails. Don't `console.warn` or throw, as this
  // won't work inside `oneOfType`.
  customProp: function(props, propName, componentName) {
    if (!/matchme/.test(props[propName])) {
      return new Error(
        'Invalid prop `' + propName + '` supplied to' +
        ' `' + componentName + '`. Validation failed.'
      );
    }
  },

  // You can also supply a custom validator to `arrayOf` and `objectOf`.
  // It should return an Error object if the validation fails. The validator
  // will be called for each key in the array or object. The first two
  // arguments of the validator are the array or object itself, and the
  // current item's key.
  customArrayProp: PropTypes.arrayOf(function(propValue, key, componentName, location, propFullName) {
    if (!/matchme/.test(propValue[key])) {
      return new Error(
        'Invalid prop `' + propFullName + '` supplied to' +
        ' `' + componentName + '`. Validation failed.'
      );
    }
  })
};

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Source: reactjs.org

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Contributed on Dec 16 2020

Black Bee

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react proptypes

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import PropTypes from 'prop-types';

class Greeting extends React.Component {
  render() {
    return (
      <h1>Hello, {this.props.name}</h1>
    );
  }
}

Greeting.propTypes = {
  name: PropTypes.string
};

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Source: reactjs.org

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Contributed on Aug 27 2020

Victorious

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using prop-types

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import React from 'react';
import PropTypes from 'prop-types';

const UserCard = ({ name, age, email }) => {
  return (
    <div>
      <h2>User Card</h2>
      <p>Name: {name}</p>
      <p>Age: {age}</p>
      <p>Email: {email}</p>
    </div>
  );
};

// Define the prop types for the UserCard component
UserCard.propTypes = {
  name: PropTypes.string.isRequired, // A required string prop
  age: PropTypes.number.isRequired,  // A required number prop
  email: PropTypes.string,           // An optional string prop
};

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Contributed on Nov 27 2023

patrick michael

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import prop-types

Comment

import PropTypes from 'prop-types'; // ES6var PropTypes = require('prop-types'); // ES5 with npm

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Source: www.npmjs.com

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Contributed on Jun 27 2021

Mysterious Moth

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prop types in react

Comment

-1

import PropTypes from 'prop-types'

function HelloWorldComponent({ name }) {
  return (
    <div>Hello, {name}</div>
  )
}

HelloWorldComponent.propTypes = {
  name: PropTypes.string
}

export default HelloWorldComponent

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Source: reactjs.org

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Contributed on Oct 12 2021

Doubtful Dogfish

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npm prop-types

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