react-type-snob/lib/verify-react.js

Encourages good typographic details in your React app

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = verifyReact;
var REACT_FUNCTIONS = ['createElement', 'isValidElement'];

function verifyReact(React) {
  if (!React) {
    throw new Error('[React Type Snob] `React` was not supplied!');
  }

  REACT_FUNCTIONS.forEach(function (functionName) {
    if (!React[functionName] || typeof React[functionName] !== 'function') {
      throw new Error('[React Type Snob] `React.' + functionName + '` isn\'t a function - are you sure you called this with React?');
    }
  });

  if (!React.Children) {
    throw new Error('[React Type Snob] `React.Children` seems to be missing - are you sure you called this with React?');
  }
}
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