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<HTML><HEAD> <META NAME="keywords" CONTENT="electronic commerce, ecommerce, ebusiness, e-business, e-commerce, enterprise software, net economy, Netscape, Sun Microsystems, Sun-Netscape Alliance, iPlanet, internet software"> <META NAME="description" CONTENT="The Sun-Netscape Alliance, a strategic alliance formed by America Online and Sun Microsystems, Inc., is delivering iPlanet e-commerce software and enterprise solutions that enable companies to compete successfully in the Net Economy"> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=ISO-8859-1"> <META NAME="TEMPLATEBASE" CONTENT="Authored in FrameMaker. Converted to HTML in WebWorks Publisher 2000. manual wdt 1.5"> <META NAME="LASTUPDATED" CONTENT="09/28/00 13:15:03"> <TITLE> Core JavaScript Reference 1.5: Core JavaScript Reference</TITLE></HEAD><BODY TEXT="#000000" LINK="#666699" VLINK="#666699" ALINK="#333366" BGCOLOR="#FFFFFF"><MAINCONTENT><NAVIGATIONCONTENT> <TABLE WIDTH="100%" BORDER="0" CELLSPACING="4"> <TR> <TD VALIGN="TOP"> <a href="ix.html"><b><FONT FACE="Arial, Helvetica,sans-serif" SIZE="2" COLOR="#993300">Index</a></FONT></b> <a href="preface.html"><b><FONT FACE="Arial, Helvetica,sans-serif" SIZE="2" COLOR="#993300">Next</a></FONT></b> </TD> </TR> <TR> <TD VALIGN="TOP" ALIGN="RIGHT" BGCOLOR="#CCCCCC"> <FONT FACE="Arial, Helvetica,sans-serif" COLOR="#000000" SIZE="2"><B> Core JavaScript Reference 1.5</B></FONT> </TD> </TR> <TR> </TABLE> <BR></NAVIGATIONCONTENT><BOOKCONTENT> <BLOCKQUOTE><BR><BR> <A NAME="52445"> </A><A NAME="Core JavaScript Reference"> </A><FONT FACE="Arial, Helvetica,sans-serif" SIZE="4" COLOR="#000000"><B><zchaptitle>Core JavaScript Reference</zchaptitle></B></FONT><BR><BR><BR><A NAME="54715"> </A><FONT FACE="Arial, Helvetica,sans-serif" SIZE="2"><zparagraph>This book is a reference manual for the core JavaScript language for version 1.5. JavaScript is Netscape's cross-platform, object-based scripting language. Core JavaScript can be extended for a variety of purposes by supplementing it with additional objects.</zparagraph></FONT><P><A NAME="57575"> </A><FONT FACE="Arial, Helvetica,sans-serif"><B><ztoc1><a href="preface.html#1001665">About this Book</a></ztoc1></B></FONT><BR><dl><A NAME="57577"> </A><FONT FACE="Arial, Helvetica,sans-serif" SIZE="2"><ztoc2><a href="preface.html#1003152">New Features in this Release</a></ztoc2></FONT><BR><A NAME="57579"> </A><FONT FACE="Arial, Helvetica,sans-serif" SIZE="2"><ztoc2><a href="preface.html#1005135">What You Should Already Know</a></ztoc2></FONT><BR><A NAME="57581"> </A><FONT FACE="Arial, Helvetica,sans-serif" SIZE="2"><ztoc2><a href="preface.html#1003515">JavaScript Versions</a></ztoc2></FONT><BR><A NAME="57583"> </A><FONT FACE="Arial, Helvetica,sans-serif" SIZE="2"><ztoc2><a href="preface.html#1001692">Where to Find JavaScript Information</a></ztoc2></FONT><BR><A NAME="57585"> </A><FONT FACE="Arial, Helvetica,sans-serif" SIZE="2"><ztoc2><a href="preface.html#1001745">Document Conventions</a></ztoc2></FONT><BR></dl><BR><A NAME="57587"> </A><FONT FACE="Arial, Helvetica,sans-serif" SIZE="4"><B><ztoc1>Part 1 <a href="partobj.html#999869"></a></ztoc1></B></FONT><P><A NAME="57589"> </A><FONT FACE="Arial, Helvetica,sans-serif"><B><ztoc1>Chapter 1<a href="objintro.html#1061890"> Objects, Methods, and Properties</a></ztoc1></B></FONT><BR><dl><A NAME="57591"> </A><FONT FACE="Arial, Helvetica,sans-serif" SIZE="2"><ztoc2><a href="array.html#1193137">Array</a></ztoc2></FONT><BR><A NAME="57593"> </A><FONT FACE="Arial, Helvetica,sans-serif" SIZE="2"><ztoc2><a href="boolean.html#1193137">Boolean</a></ztoc2></FONT><BR><A NAME="57595"> </A><FONT FACE="Arial, Helvetica,sans-serif" SIZE="2"><ztoc2><a href="date.html#1193137">Date</a></ztoc2></FONT><BR><A NAME="57597"> </A><FONT FACE="Arial, Helvetica,sans-serif" SIZE="2"><ztoc2><a href="function.html#1193137">Function</a></ztoc2></FONT><BR><A NAME="57599"> </A><FONT FACE="Arial, Helvetica,sans-serif" SIZE="2"><ztoc2><a href="java.html#1193137">java</a></ztoc2></FONT><BR><A NAME="57601"> </A><FONT FACE="Arial, Helvetica,sans-serif" SIZE="2"><ztoc2><a href="javarray.html#1193137">JavaArray</a></ztoc2></FONT><BR><A NAME="57603"> </A><FONT FACE="Arial, Helvetica,sans-serif" SIZE="2"><ztoc2><a href="javclass.html#1193137">JavaClass</a></ztoc2></FONT><BR><A NAME="57605"> </A><FONT FACE="Arial, Helvetica,sans-serif" SIZE="2"><ztoc2><a href="javobj.html#1193137">JavaObject</a></ztoc2></FONT><BR><A NAME="57607"> </A><FONT FACE="Arial, Helvetica,sans-serif" SIZE="2"><ztoc2><a href="javpkg.html#1193137">JavaPackage</a></ztoc2></FONT><BR><A NAME="57609"> </A><FONT FACE="Arial, Helvetica,sans-serif" SIZE="2"><ztoc2><a href="math.html#1193138">Math</a></ztoc2></FONT><BR><A NAME="57611"> </A><FONT FACE="Arial, Helvetica,sans-serif" SIZE="2"><ztoc2><a href="netscape.html#1193137">netscape</a></ztoc2></FONT><BR><A NAME="57613"> </A><FONT FACE="Arial, Helvetica,sans-serif" SIZE="2"><ztoc2><a href="number.html#1193137">Number</a></ztoc2></FONT><BR><A NAME="57615"> </A><FONT FACE="Arial, Helvetica,sans-serif" SIZE="2"><ztoc2><a href="object.html#1193136">Object</a></ztoc2></FONT><BR><A NAME="57617"> </A><FONT FACE="Arial, Helvetica,sans-serif" SIZE="2"><ztoc2><a href="packages.html#1193137">Packages</a></ztoc2></FONT><BR><A NAME="57619"> </A><FONT FACE="Arial, Helvetica,sans-serif" SIZE="2"><ztoc2><a href="regexp.html#1193136">RegExp</a></ztoc2></FONT><BR><A NAME="57621"> </A><FONT FACE="Arial, Helvetica,sans-serif" SIZE="2"><ztoc2><a href="string.html#1193137">String</a></ztoc2></FONT><BR><A NAME="57623"> </A><FONT FACE="Arial, Helvetica,sans-serif" SIZE="2"><ztoc2><a href="sun.html#1193137">sun</a></ztoc2></FONT><BR></dl><A NAME="57625"> </A><FONT FACE="Arial, Helvetica,sans-serif"><B><ztoc1>Chapter 2<a href="toplev.html#1061890"> Top-Level Properties and Functions</a></ztoc1></B></FONT><BR><dl><A NAME="57627"> </A><FONT FACE="Arial, Helvetica,sans-serif" SIZE="2"><ztoc2><a href="toplev.html#1120957">decodeURI</a></ztoc2></FONT><BR><A NAME="57629"> </A><FONT FACE="Arial, Helvetica,sans-serif" SIZE="2"><ztoc2><a href="toplev.html#1119005">decodeURIComponent</a></ztoc2></FONT><BR><A NAME="57631"> </A><FONT FACE="Arial, Helvetica,sans-serif" SIZE="2"><ztoc2><a href="toplev.html#1118346">encodeURI</a></ztoc2></FONT><BR><A NAME="57633"> </A><FONT FACE="Arial, Helvetica,sans-serif" SIZE="2"><ztoc2><a href="toplev.html#1115986">encodeURIComponent</a></ztoc2></FONT><BR><A NAME="57635"> </A><FONT FACE="Arial, Helvetica,sans-serif" SIZE="2"><ztoc2><a href="toplev.html#1063795">eval</a></ztoc2></FONT><BR><A NAME="57637"> </A><FONT FACE="Arial, Helvetica,sans-serif" SIZE="2"><ztoc2><a href="toplev.html#1063963">Infinity</a></ztoc2></FONT><BR><A NAME="57639"> </A><FONT FACE="Arial, Helvetica,sans-serif" SIZE="2"><ztoc2><a href="toplev.html#1063988">isFinite</a></ztoc2></FONT><BR><A NAME="57641"> </A><FONT FACE="Arial, Helvetica,sans-serif" SIZE="2"><ztoc2><a href="toplev.html#1064024">isNaN</a></ztoc2></FONT><BR><A NAME="57643"> </A><FONT FACE="Arial, Helvetica,sans-serif" SIZE="2"><ztoc2><a href="toplev.html#1064064">NaN</a></ztoc2></FONT><BR><A NAME="57645"> </A><FONT FACE="Arial, Helvetica,sans-serif" SIZE="2"><ztoc2><a href="toplev.html#1064092">Number</a></ztoc2></FONT><BR><A NAME="57647"> </A><FONT FACE="Arial, Helvetica,sans-serif" SIZE="2"><ztoc2><a href="toplev.html#1064132">parseFloat</a></ztoc2></FONT><BR><A NAME="57649"> </A><FONT FACE="Arial, Helvetica,sans-serif" SIZE="2"><ztoc2><a href="toplev.html#1064173">parseInt</a></ztoc2></FONT><BR><A NAME="57651"> </A><FONT FACE="Arial, Helvetica,sans-serif" SIZE="2"><ztoc2><a href="toplev.html#1064506">String</a></ztoc2></FONT><BR><A NAME="57653"> </A><FONT FACE="Arial, Helvetica,sans-serif" SIZE="2"><ztoc2><a href="toplev.html#1094680">undefined</a></ztoc2></FONT><BR></dl><BR><A NAME="57655"> </A><FONT FACE="Arial, Helvetica,sans-serif" SIZE="4"><B><ztoc1>Part 2 <a href="partlang.html#999869"></a></ztoc1></B></FONT><P><A NAME="57657"> </A><FONT FACE="Arial, Helvetica,sans-serif"><B><ztoc1>Chapter 3<a href="stmt.html#1003191"> Statements</a></ztoc1></B></FONT><BR><dl><A NAME="57659"> </A><FONT FACE="Arial, Helvetica,sans-serif" SIZE="2"><ztoc2><a href="stmt.html#1081298">break</a></ztoc2></FONT><BR><A NAME="57661"> </A><FONT FACE="Arial, Helvetica,sans-serif" SIZE="2"><ztoc2><a href="stmt.html#1077887">const</a></ztoc2></FONT><BR><A NAME="57663"> </A><FONT FACE="Arial, Helvetica,sans-serif" SIZE="2"><ztoc2><a href="stmt.html#1078923">continue</a></ztoc2></FONT><BR><A NAME="57665"> </A><FONT FACE="Arial, Helvetica,sans-serif" SIZE="2"><ztoc2><a href="stmt.html#1037353">do...while</a></ztoc2></FONT><BR><A NAME="57667"> </A><FONT FACE="Arial, Helvetica,sans-serif" SIZE="2"><ztoc2><a href="stmt.html#1016648">export</a></ztoc2></FONT><BR>⌨️ 快捷键说明
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