hasChildNodes Method | DHTML文档教程 |
Returns a value that indicates whether the object has children.
What's New for Microsoft® Internet Explorer 6
This method now applies to the
dhtml语法
bChildNodes = object.hasChildNodes()Return Value
Returns one of the following possible values:
true The object contains html elements or textnode objects. false the object does not contain html elements or textnodes.
Remarks
If the object contains HTML Elements or TextNodes, they can be accessed from the childnodes collection.
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, ACRONYM, ADDRESS, APPLET, AREA, attribute, B, BASE, BASEFONT, BDO, BIG, BLOCKQUOTE, BODY, BR, BUTTON, CAPTION, CENTER, CITE, CODE, COL, COLGROUP, COMMENT, DD, DEL, 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=image, INPUT type=password, INPUT type=radio, INPUT type=reset, INPUT type=submit, INPUT type=text, INS, KBD, LABEL, LEGEND, LI, LINK, LISTING, MAP, MARQUEE, MENU, nextID, OL, OPTION, P, PLAINTEXT, PRE, Q, S, SAMP, SCRIPT, SELECT, SMALL, SPAN, STRIKE, STRONG, SUB, SUP, TABLE, TBODY, TD, TEXTAREA, TFOOT, TH, THEAD, TITLE, TR, TT, U, UL, VAR, XMP
更多语法参考
About the W3C Document Object Model