XML DOM HTMLCollection Object

Naɗiyanan HTMLCollection

HTMLCollection yana da ɗaukakar yawa, yana wakilci kungiyar HTML naɗiyanan, yana iya samun yawa naɗiyanan da za a iya yin haka.

HTMLCollection naɗiyanan HTML DOM yana da ɗaukakar yawa; idan abin da ke cikin dukiya ya fara kuma yana iya yin haka, kowane yankin naɗiyanan HTMLCollection zai iya nuna yawa ba tare da yin yawa ba.

Kowane abin da a cikin kowane yanki (da kuma abin da a cikin kowane sunan) suka yin naɗiyanan HTMLCollection:

  • Document (images, applets, links, forms, anchors)
  • form (elements)
  • map (areas)
  • select (options)
  • table (rows, tBodies)
  • tableSection (rows)
  • row (cells)

Manyan girmamawa na HTMLDocument naɗiyanan suna da naɗiyanan HTMLCollection, yana iya samun yankin da ke cikin dukiya, tasiri, da kuma abin da ke cikin dukiya.form.elements da select.options sune naɗiyanan HTMLCollection. HTMLCollection tsohon yana kuma nuna da yawa naɗiyanan, yana iya samun yankin da ke cikin dukiya. Table da kowannin yankin TableRow naɗiyanan na ɗan ɗaya na cikin gwiwar.

dake yana yin haka, HTMLCollection naɗiyanan shine kungiyar HTML da ke da naɗiyanan, yana iya samun abin da ke cikin yankin da yake cikin dukiya ko kuma abin da ke cikin id naɗiyanan ko sunan naɗiyanan. A JavaScript, naɗiyanan HTMLCollection yana da hankali da tashiwarin girmamawa, yana iya samun naɗiyanan HTMLCollection da kuduwa da kanan ko sunan, kuma yana iya yin haka kuma ba tare da yin call ga. item() naɗiyananda namedItem() naɗiyanan.

HTMLCollection yana da kuduwa, kuma yana iya yin tura abin da zai zama abin da ke cikin yankin dake cikin JavaScript array grammar kuma.

HTMLCollection NodeList fannanda yake da yawa kuma na iya yiwa kudu da sunan ko kuma kudu da kanan.

Girmamawa HTMLCollection

Girmamawa mi shu
cssRules Asarun gari, yana a bada kowa tashiwarin kudu na nisan (wannan shine tamanin abin da yake cikin yankin).

HTMLCollection naɗiyanan

fang fa mi shu
item() hui huan jí hé zhong zhi ding wei zhi de yuan su (jiao dian).
namedItem() hui huan jí hé zhong name shu xing huo id shu xing you zhi dìng zhi yuan de yuan su (jiao dian).

shi li

var c = document.forms;		//zhè shì form yuan su de yi ge HTMLCollection fannan
var firstform = c[0];		//néng yǐ shi shu du ju yǐ shi yong
var lastform = c[c.length-1];	//length shu xing fan hui yuan su shu
var address = c["address"];		//néng yǐ guan xian du ju yǐ shi yong
var address = c.address;		//JavaScript xu neng yan yin zhe zhong de bi shi

xian xiang ye mian

XML DOM can kao shou ce:HTMLDocument fannan

XML DOM can kao shou ce:NodeList fannan

can kao shou ce:HTML DOM can kao shou ce