ramda-adjunct/es/isGeneratorFunction.js

Ramda Adjunct is the most popular and most comprehensive set of utilities for use with Ramda, providing a variety of useful, well tested functions with excellent documentation.

import { type, is, F as stubFalse, either, identical, pipe, curryN } from 'ramda';
var GeneratorFunction = null;
var legacyCheck = null;

try {
  GeneratorFunction = new Function('return function* () {}')().constructor; // eslint-disable-line no-new-func

  legacyCheck = is(GeneratorFunction);
} catch (e) {
  legacyCheck = stubFalse;
}
/**
 * Checks if input value is `Generator Function`.
 *
 * @func isGeneratorFunction
 * @memberOf RA
 * @since {@link https://char0n.github.io/ramda-adjunct/0.5.0|v0.5.0}
 * @category Type
 * @sig * -> Boolean
 * @param {*} val The value to test
 * @return {boolean}
 * @see {@link RA.isFunction|isFunction}, {@link RA.isAsyncFunction|isAsyncFunction}, {@link RA.isNotGeneratorFunction|isNotGeneratorFunction}
 * @example
 *
 * RA.isGeneratorFunction(function* test() { }); //=> true
 * RA.isGeneratorFunction(null); //=> false
 * RA.isGeneratorFunction(function test() { }); //=> false
 * RA.isGeneratorFunction(() => {}); //=> false
 */


var isGeneratorFunction = curryN(1, either(pipe(type, identical('GeneratorFunction')), legacyCheck));
export default isGeneratorFunction;