getAttribute Method

Retrieves the value of the specified attribute.

dhtml语法

vAttrValue = object.getAttribute(sAttrName [, iFlags])

Parameters

sAttrName Required. Stringthat specifies the name of the attribute.
iFlags Optional. Integerthat specifies one or more of the following flags:
0 Default. Performs a property search that is not case-sensitive, and returns an interpolated value if the property is found.
1 Performs a case-sensitive property search. To find a match, the uppercase and lowercase letters in sAttrName must exactly match those in the attribute name. If the iFlags parameter for getAttribute is set to 1 and this option is set to 0 (default), the specified property name might not be found.
2 Returns the value exactly as it was set in script or in the source document.

Return Value

Variantthat returns a String, number, or Boolean value as defined by the attribute. If the attribute is not present, this method returns null.

Remarks

If two or more attributes have the same name (differing only in uppercase and lowercase letters) and iFlags is 0, the getAttribute method retrieves values only for the last attribute created with this name, and ignores all other attributes with the same name.
When retrieving the CLASS attribute using this method, set the sAttrName to be "className", which is the corresponding Dynamic HTML（动态HTML，即DHTML） property.
This method is used only by events created from HTML Components.

是否符合公共标准

This method is defined in World Wide Web Consortium (W3C) Document Object Model (DOM) Level 1 .

Applies To

A, ADDRESS, APPLET, AREA, B, BASE, BASEFONT, BGSOUND, BIG, BLOCKQUOTE, BODY, BR, BUTTON, CAPTION, CENTER, CITE, CODE, COL, COLGROUP, COMMENT, currentStyle, CUSTOM, DD, DFN, DIR, DIV, DL, DT, EM, EMBED, FIELDSET, FONT, FORM, FRAME, FRAMESET, HEAD, hn, HR, HTML, I, IFRAME, IMG, INPUT type=button, INPUT type=checkbox, INPUT type=file, INPUT type=hidden, INPUT type=image, INPUT type=password, INPUT type=radio, INPUT type=reset, INPUT type=submit, INPUT type=text, KBD, LABEL, LEGEND, LI, LINK, LISTING, MAP, MARQUEE, MENU, META, nextID, NOBR, OBJECT, OL, OPTION, P, PLAINTEXT, PRE, runtimeStyle, S, SAMP, SCRIPT, SELECT, SMALL, SPAN, STRIKE, STRONG, style, SUB, SUP, TABLE, TBODY, TD, TEXTAREA, TFOOT, TH, THEAD, TITLE, TR, TT, U, UL, VAR, WBR, XMP

更多语法参考

removeattribute, setAttribute