zaheer Posted February 19, 2008 Share Posted February 19, 2008 if for example i have the tags:<name>zaheer</name><name></name>and i want the condition if there is info within the tags do this:document.write(x.getElementsByTagName("name")[0].childNodes[0].nodeValue);else if there's nothing print "nothing", or move onto the next test.how do u do this in javascript. thanx in advance. Link to comment Share on other sites More sharing options...
boen_robot Posted February 19, 2008 Share Posted February 19, 2008 I think with the default a.k.a. "or" operator - "||" like so: document.write(x[i].getElementsByTagName("name")[0].childNodes[0].nodeValue || 'nothing'); or maybe with the ternary operator (if ? then : else) like: document.write(x[i].getElementsByTagName("name")[0].childNodes[0].nodeValue == null ? x[i].getElementsByTagName("name")[0].childNodes[0].nodeValue : 'nothing'); Link to comment Share on other sites More sharing options...
Tundra Posted February 20, 2008 Share Posted February 20, 2008 I think with the default a.k.a. "or" operator - "||" like so:document.write(x[i].getElementsByTagName("name")[0].childNodes[0].nodeValue || 'nothing'); or maybe with the ternary operator (if ? then : else) like: document.write(x[i].getElementsByTagName("name")[0].childNodes[0].nodeValue == null ? x[i].getElementsByTagName("name")[0].childNodes[0].nodeValue : 'nothing'); I have the same problem, solution above does not seem to work for me. Link to comment Share on other sites More sharing options...
aalbetski Posted February 20, 2008 Share Posted February 20, 2008 this worked for me (remember that there are many ways to do this, this is just one of them). I used XML Data Islands for convenience only. I would never do this in a production system <html> <head> <xml id="oXML"> <?xml version="1.0" encoding="ISO-8859-1"?> <names> <name>zaheer</name> <name></name> </names> </xml> <script type="text/javascript"> var xmlDoc; function loadXML() { var xmlDoc = new ActiveXObject("Msxml2.DOMDocument.4.0") xmlDoc.async=false; xmlDoc.loadXML(oXML.xml); var xmlNames = xmlDoc.selectNodes("//name"); for (var l=0;l<xmlNames.length;l++) { Item = xmlNames.item(l); document.write( (Item.text.length != 0) ? Item.text : "Nothing") document.write("<br/>") } } </script> </head> <body onload="loadXML()"></body></html> Just an aside, if you were rendering using XSLT, you could use <xsl:for-each select="//name"> <xsl:choose> <xsl:when test="string(text())"> <xsl:value-of select="."/> </xsl:when> <xsl:otherwise> <xsl:text>Nothing</xsl:text> </xsl:otherwise> </xsl:choose></xsl:for-each> Link to comment Share on other sites More sharing options...
Tundra Posted February 20, 2008 Share Posted February 20, 2008 How would you do this in a looping table? Link to comment Share on other sites More sharing options...
zaheer Posted February 20, 2008 Author Share Posted February 20, 2008 what if the xml file looked like this:<item><name></name><address>anwhere</address><tel>somenumber</tel></item><item><name>bob</name><address>someplase</address><tel>number</tel></item>i want the condition if there is info within the tags do this:document.write(x.getElementsByTagName("name")[0].childNodes[0].nodeValue);else if there's nothing within this tag, move into checking the next element (address), and then eventually moving onto the next item to check for empty tags in each element. Link to comment Share on other sites More sharing options...
boen_robot Posted February 21, 2008 Share Posted February 21, 2008 what if the xml file looked like this:<item><name></name><address>anwhere</address><tel>somenumber</tel></item><item><name>bob</name><address>someplase</address><tel>number</tel></item>i want the condition if there is info within the tags do this:document.write(x.getElementsByTagName("name")[0].childNodes[0].nodeValue);else if there's nothing within this tag, move into checking the next element (address), and then eventually moving onto the next item to check for empty tags in each element. Maybe something likevar writeThis = x[i].getElementsByTagName("name")[0].childNodes[0].nodeValue;if(writeThis != null) {document.write(writeThis);} Link to comment Share on other sites More sharing options...
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