only-changed-jest-watch-plugin/example/node_modules/lodash/_castFunction.js

Jest watch plugin for running either only the modified test (for TDD), or tests of dependant modules

var identity = require('./identity');

/**
 * Casts `value` to `identity` if it's not a function.
 *
 * @private
 * @param {*} value The value to inspect.
 * @returns {Function} Returns cast function.
 */
function castFunction(value) {
  return typeof value == 'function' ? value : identity;
}

module.exports = castFunction;