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  • React组件属性类型(propTypes)

    React.createClass({
      propTypes: {
        // You can declare that a prop is a specific JS primitive. By default, these
        // are all optional.
        optionalArray: React.PropTypes.array,
        optionalBool: React.PropTypes.bool,
        optionalFunc: React.PropTypes.func,
        optionalNumber: React.PropTypes.number,
        optionalObject: React.PropTypes.object,
        optionalString: React.PropTypes.string,
        optionalSymbol: React.PropTypes.symbol,
    
        // Anything that can be rendered: numbers, strings, elements or an array
        // (or fragment) containing these types.
        optionalNode: React.PropTypes.node,
    
        // A React element.
        optionalElement: React.PropTypes.element,
    
        // You can also declare that a prop is an instance of a class. This uses
        // JS's instanceof operator.
        optionalMessage: React.PropTypes.instanceOf(Message),
    
        // You can ensure that your prop is limited to specific values by treating
        // it as an enum.
        optionalEnum: React.PropTypes.oneOf(['News', 'Photos']),
    
        // An object that could be one of many types
        optionalUnion: React.PropTypes.oneOfType([
          React.PropTypes.string,
          React.PropTypes.number,
          React.PropTypes.instanceOf(Message)
        ]),
    
        // An array of a certain type
        optionalArrayOf: React.PropTypes.arrayOf(React.PropTypes.number),
    
        // An object with property values of a certain type
        optionalObjectOf: React.PropTypes.objectOf(React.PropTypes.number),
    
        // An object taking on a particular shape
        optionalObjectWithShape: React.PropTypes.shape({
          color: React.PropTypes.string,
          fontSize: React.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: React.PropTypes.func.isRequired,
    
        // A value of any data type
        requiredAny: React.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: React.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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  • 原文地址:https://www.cnblogs.com/yiguozhi/p/6612779.html
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