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Microsoft Script Debugger
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<h2 id="features">Features</h2> <p>According to Microsoft, the Script Debugger provides these traditional debugging features:<a class="footnote-ref" id="fnref:2" href="#fn:2"><sup>2</sup></a> </p> <ul><li>Ability to set and clear breakpoints.</li> <li>Ability to step through and over procedures.</li> <li>Ability to display and change the values of variables and properties.</li> <li>Ability to evaluate expressions.</li> <li>Ability to view the call stack, and navigate to any currently loaded procedure.</li></ul> <p>Additionally, it can open and edit HTML pages, and it supports script colorization for improved readability.<a class="footnote-ref" id="fnref:3" href="#fn:3"><sup>3</sup></a> </p> <h2 id="limitations">Limitations</h2> <p>The debugger has several limitations, including the following:<a class="footnote-ref" id="fnref:4" href="#fn:4"><sup>4</sup></a> </p> <ul><li>The line indicator may be incorrect when stepping through inline JScript or debugging a framed document.</li> <li>When debugging documents open in Internet Explorer, only one can be debugged at a time.</li> <li>Commands typed in the Command window have no effect unless the user is in break mode.</li> <li>A breakpoint immediately after a Document.Write is ignored.</li> <li>Entering a Document.Write command while debugging, or refreshing a document in Internet Explorer while debugging it, can cause hangs or other unexpected behavior.</li> <li>Unlike in other debuggers, there is no Watch window for monitoring variables; they must be checked via manual commands.</li> <li>Unlike in other debuggers, breakpoints can't be set by clicking in the left margin; they must be set via keypress or menu.</li></ul> <h2 id="usage">Usage</h2> <p>After installation, new options can be found in <a href="/facts/Internet_Explorer/uL8a4Y5l">Internet Explorer's</a> <i>Script Debugger</i> menu, which gets added in the <i>View</i> menu. Debugging can optionally be turned off from the <i>Advanced</i> tab in the <i>Internet Options</i> dialog. </p> <h2 id="see-also">See also</h2> <ul><li><a href="/facts/Microsoft_Script_Editor/qIfUSF9T">Microsoft Script Editor</a></li> <li><a href="/facts/Internet_Explorer_Developer_Tools/oy2W5hqt">Internet Explorer Developer Tools</a></li></ul> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>"Discovering Internet Explorer Developer Tools". Microsoft. Retrieved 2009-08-08. <a href="http://msdn.microsoft.com/en-us/library/dd565628%28VS.85%29.aspx" target="_blank">http://msdn.microsoft.com/en-us/library/dd565628%28VS.85%29.aspx</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>"Introduction to Microsoft Script Debugger for Internet Explorer". Microsoft. Archived from the original on 2008-04-12. Retrieved 2009-09-08. <a href="https://web.archive.org/web/20080412035445/http://msdn2.microsoft.com/en-us/library/ms532989.aspx" target="_blank">https://web.archive.org/web/20080412035445/http://msdn2.microsoft.com/en-us/library/ms532989.aspx</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> <li id="fn:3"><p>"Introduction to Microsoft Script Debugger for Internet Explorer". Microsoft. Archived from the original on 2008-04-12. Retrieved 2009-09-08. <a href="https://web.archive.org/web/20080412035445/http://msdn2.microsoft.com/en-us/library/ms532989.aspx" target="_blank">https://web.archive.org/web/20080412035445/http://msdn2.microsoft.com/en-us/library/ms532989.aspx</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li> <li id="fn:4"><p>"Contents of Script Debugger Release Notes". Microsoft. June 23, 2005. Archived from the original on 2010-02-03. Retrieved 2009-09-08. Alternative web page <a href="https://web.archive.org/web/20100203162214/http://support.microsoft.com/kb/230305" target="_blank">https://web.archive.org/web/20100203162214/http://support.microsoft.com/kb/230305</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></p></li> </ol>