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.prop(key) => Any

Returns the prop value for the root node of the wrapper with the provided key. .prop(key) can only be called on a wrapper of a single node.

NOTE: When called on a shallow wrapper, .prop(key) will return values for props on the root node that the component renders, not the component itself. To return the props for the entire React component, use wrapper.instance().props. See .instance() => ReactComponent


  1. key (String): The prop name such that this will return value will be the this.props[key] of the root node of the component.


import PropTypes from 'prop-types';

function MyComponent({ includedProp }) {
  return (
    <div className="foo bar" includedProp={includedProp}>Hello</div>
MyComponent.propTypes = {
  includedProp: PropTypes.string.isRequired,

const wrapper = shallow(<MyComponent includedProp="Success!" excludedProp="I'm not included" />);

// Warning: .prop(key) only returns values for props that exist in the root node.
// See the note above about wrapper.instance().props to return all props in the React component.

// "Success!"

// undefined

// "I'm not included"