ECMAScript with Statement

Dokoki da tag

Dokoki with ana amfani da ita don tura dokoki samarwa a cikin kwarin samarwa na kwarin samarwa.

Dokoki:

with (expression) statement

Masanin:

var sMessage = "hello";
with(sMessage) {
  alert(toUpperCase());	// samar da "HELLO"
}

A cikin wannan tasiri, dokoki with ana amfani da ita don samarwa, kuma a lokacin da a kai samarwa toUpperCase() method, tushen samarwa zai yi nazarin bai koyi dokoki ba. Idan ba, ita za ta nazarin kuma fahimta sMessage, kuma bai koyi dokoki ba, ita za ta nazarin. Sannan, alert zai samar da "HELLO", saboda tushen samarwa ya samar da method toUpperCase() na samarwa "hello".

Gurin samarwa:Dokoki with na ke kai samarwa dindindin, kuma a lokaci da a yi samarwa, a kai samarwa kuma a yi samarwa. Babu kama a yi amfani da ita, wanda kai tsaye a kai samarwa.