- var global = require('../internals/global');
- var isCallable = require('../internals/is-callable');
- var tryToString = require('../internals/try-to-string');
- var TypeError = global.TypeError;
- // `Assert: IsCallable(argument) is true`
- module.exports = function (argument) {
- if (isCallable(argument)) return argument;
- throw TypeError(tryToString(argument) + ' is not a function');
- };
|