babel-preset-test-bundled-dependencies/node_modules/acorn/src/util.js

Allow custom config for create-react-app without ejecting

export function isArray(obj) {
  return Object.prototype.toString.call(obj) === "[object Array]"
}

// Checks if an object has a property.

export function has(obj, propName) {
  return Object.prototype.hasOwnProperty.call(obj, propName)
}