An warware: kumburi idan akwai hanya

Idan hanya ta kasance tsakanin nodes biyu a cikin jadawali, to an haɗa jadawali. Wannan yana nufin cewa akwai hanya tsakanin kowane nodes biyu a cikin jadawali, kuma cewa jadawali ba acyclic ba ne.

var path = require('path');

if (path.existsSync('/etc/passwd')) {
  console.log('Path exists.');
} else {
  console.log('Path does not exist.');
}

Layin farko yana haifar da canji mai suna hanya wanda ke buƙatar tsarin 'hanyar'. Tsarin 'hanyar' shine ainihin ƙirar Node.js wanda ke ba da abubuwan amfani don aiki tare da fayil da hanyoyin shugabanci.

Layi na biyu yana bincika idan hanyar '/etc/passwd' ta wanzu. Idan ya kasance, 'Hanya ta wanzu.' an shigar da saƙo zuwa na'ura mai kwakwalwa. Idan ba haka ba, 'Hanyar ba ta wanzu.' an shigar da saƙo zuwa na'ura mai kwakwalwa.

Menene hanya

?

A cikin JavaScript, hanya shine jerin haruffa waɗanda ke wakiltar wuri a cikin tsarin fayil.

idan hanya akwai

Ee, abin hanyar yana cikin JavaScript. Yana ba da hanyoyi don dawo da hanyar zuwa fayil ko kundin adireshi, da kuma ƙayyade hanyar tsarin fayil na fayil ko kundin adireshi da aka bayar.