better-npm-init/templates/npm/electron/node_modules/yargs/build/lib/utils/is-promise.js

A better version of npm init, with templates and more. Usage: better-npm-init <template> [--yarn] [--install] [--git] [--yes] [--help]

export function isPromise(maybePromise) {
    return (!!maybePromise &&
        !!maybePromise.then &&
        typeof maybePromise.then === 'function');
}