directorio
1.props verificación
Dado que las aplicaciones siguen creciendo, sino también para hacer que el programa de diseño más riguroso, a menudo necesitamos tipo (valor) de los datos necesarios para verificar, React.js proporciona una biblioteca de validación: prop-tipos
1.1prop tipos
hélices tipos es una biblioteca independiente, es necesario instalar
1.2 Instalación
NPM i -S prop-tipos
1.3 uso
PropTypes de importación de 'prop-tipos';
Su uso no es complicado, y defaultProps similares, añadimos una propiedades estáticas en la clase del componente propTypes , es un objeto de valor, clave para validar el nombre del atributo, el valor es las reglas de validación
MyComponent.propTypes = {
// You can declare that a prop is a specific JS primitive. 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 (ie. <MyComponent />).
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),
// You can chain any of the above with `isRequired` to make sure a warning
// is shown if the prop isn't provided.
// An object taking on a particular shape
optionalObjectWithShape: PropTypes.shape({
optionalProperty: PropTypes.string,
requiredProperty: PropTypes.number.isRequired
}),
// An object with warnings on extra properties
optionalObjectWithStrictShape: PropTypes.exact({
optionalProperty: PropTypes.string,
requiredProperty: PropTypes.number.isRequired
}),
requiredFunc: PropTypes.func.isRequired,
// A 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.'
);
}
})
};