0.2.1 • Published 8 years ago
prop-types-extended v0.2.1
prop-types-extended
Extracted from React.PropTypes
and extended version of propTypes. To use without a dependency on React
.
Install
npm install --save prop-types-extended
API: PropTypesExtended.validate
Example
Pass a PropType schema, a props object, and a descriptive name for warnings. In React the descriptive name would be the displayName
of a component.
import PropTypesExtended from 'prop-types-extended';
var schema = {
ham: PropTypesExtended.string.isRequired
};
PropTypesExtended.validate(schema, {ham: 'delicious'}, 'Ham');
API: PropTypesExtended.validateWithErrors
Similar to PropTypesExtended.validate
but will throw errors instead of logging warnings to the console.
API: PropTypesExtended
{
// You can declare that a prop is a specific JS primitive. By default, these
// are all optional.
optionalArray: PropTypesExtended.array,
optionalBool: PropTypesExtended.bool,
optionalFunc: PropTypesExtended.func,
optionalNumber: PropTypesExtended.number,
optionalObject: PropTypesExtended.object,
optionalString: PropTypesExtended.string,
// You can also declare that a prop is an instance of a class. This uses
// JS's instanceof operator.
optionalMessage: PropTypesExtended.instanceOf(Message),
// You can ensure that your prop is limited to specific values by treating
// it as an enum.
optionalEnum: PropTypesExtended.oneOf(['News', 'Photos']),
// An object that could be one of many types
optionalUnion: PropTypesExtended.oneOfType([
PropTypesExtended.string,
PropTypesExtended.number,
PropTypesExtended.instanceOf(Message)
]),
// An array of a certain type
optionalArrayOf: PropTypesExtended.arrayOf(PropTypesExtended.number),
// An object with property values of a certain type
optionalObjectOf: PropTypesExtended.objectOf(PropTypesExtended.number),
// An object taking on a particular shape
optionalObjectWithShape: PropTypesExtended.shape({
color: PropTypesExtended.string,
fontSize: PropTypesExtended.number
}),
// You can chain any of the above with `isRequired` to make sure a warning
// is shown if the prop isn't provided.
requiredFunc: PropTypesExtended.func.isRequired,
// A value of any data type
requiredAny: PropTypesExtended.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, descriptiveName) {
if (!/matchme/.test(props[propName])) {
return new Error('Validation failed!');
}
}
}
Caveat
This is not an exact drop-in, validations related to React have been stripped out. PropTypesExtended.element
and PropTypesExtended.node
are not included.
0.2.1
8 years ago