Function isControlled

docs/external/js/react-dom.development.js:1918–1921

(props)

  var didWarnUncontrolledToControlled = false;

  function isControlled(props) {
    var usesChecked = props.type === 'checkbox' || props.type === 'radio';
    return usesChecked ? props.checked != null : props.value != null;
  }
  /**
   * Implements an <input> host component that allows setting these optional
   * props: `checked`, `value`, `defaultChecked`, and `defaultValue`.