Server : Apache/2.4.41 (Ubuntu) System : Linux absol.cf 5.4.0-198-generic #218-Ubuntu SMP Fri Sep 27 20:18:53 UTC 2024 x86_64 User : www-data ( 33) PHP Version : 7.4.33 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare, Directory :  /proc/self/root/usr/local/lib/node_modules/browserify/node_modules/es-abstract/2018/

Upload File : current_dir [ Writeable ] document_root [ Writeable ]

'use strict';

var callBound = require('call-bind/callBound');

var $PromiseThen = callBound('Promise.prototype.then', true);

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

// https://ecma-international.org/ecma-262/6.0/#sec-ispromise

module.exports = function IsPromise(x) {
	if (Type(x) !== 'Object') {
		return false;
	}
	if (!$PromiseThen) { // Promises are not supported
		return false;
	}
	try {
		$PromiseThen(x); // throws if not a promise
	} catch (e) {
		return false;
	}
	return true;
};