From 218934fa2ed1c702a6d3923d2aa2cc6b43c48684 Mon Sep 17 00:00:00 2001 From: Peter Bengtsson Date: Tue, 8 Dec 2020 14:43:23 -0500 Subject: initial commit --- files/zh-tw/web/api/document/forms/index.html | 75 +++++++++++++++++++++++++++ 1 file changed, 75 insertions(+) create mode 100644 files/zh-tw/web/api/document/forms/index.html (limited to 'files/zh-tw/web/api/document/forms') diff --git a/files/zh-tw/web/api/document/forms/index.html b/files/zh-tw/web/api/document/forms/index.html new file mode 100644 index 0000000000..769d80871c --- /dev/null +++ b/files/zh-tw/web/api/document/forms/index.html @@ -0,0 +1,75 @@ +--- +title: Document.forms +slug: Web/API/Document/forms +translation_of: Web/API/Document/forms +--- +
{{APIRef("DOM")}}
+ +

forms 屬性會回傳一個包含目前頁面中所有 {{HTMLElement("form")}} 元素的集合物件（型別為 {{domxref("HTMLCollection")}}）。

+ +

語法

+ +
collection = document.forms;
+ +

範例：取得表單資訊

+ +
<!DOCTYPE html>
+<html lang="en">
+
+<head>
+<title>document.forms example</title>
+</head>
+
+<body>
+
+<form id="robby">
+  <input type="button" onclick="alert(document.forms[0].id);" value="robby's form" />
+</form>
+
+<form id="dave">
+  <input type="button" onclick="alert(document.forms[1].id);" value="dave's form" />
+</form>
+
+<form id="paul">
+  <input type="button" onclick="alert(document.forms[2].id);" value="paul's form" />
+</form>
+
+</body>
+</html>
+
+ +

範例 2：取得表單內的元素

+ +
var selectForm = document.forms[index];
+var selectFormElement = document.forms[index].elements[index];
+
+ +

規範

+ + + + + + + + + + + + + + + + + + + + + +
SpecificationStatusComment
{{SpecName('HTML WHATWG', '#dom-document-forms', 'Document.forms')}}{{ Spec2('HTML WHATWG') }} 
{{SpecName('DOM2 HTML', 'html.html#ID-1689064', 'Document.forms')}}{{ Spec2('DOM2 Events') }}Initial definition.
+ +

參見

+ + -- cgit v1.2.3-54-g00ecf