MobiJournal

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Clicking this link<a> will cause the above error to occur if the domain "www.blackberry.com" is not white listed.</a>

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<?xml version="1.0" encoding="UTF-8"?><widget xmlns="http://www.w3.org/ns/widgets"         xmlns:rim="http://www.blackberry.com/ns/widgets"             version="1.0.0.0">  <name>commonPitfalls</name>  <access subdomains="false" uri="http://www.blackberry.com"/>  <content src="index.html"/></widget>

<a>

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<a>function showName() {   alert('App Name: ' + blackberry.app.name);</a>

<a> // The above example will produce a runtime error if the    // "blackberry.app" feature is not whitelisted because the   // JavaScript engine will evaluate "blackberry.app" to be    // 'undefined' which can then not be used as an object   // to evaluate the ".name" property}</a>

<a>

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<a>function world(){  try {      // Do some functionality - what happens if an exception occurs here?      return 'World';   } catch {      alert("Exception in 'world': " + e);   }}function hello(){  try {      // Do some functionality - what happens if an exception occurs here      return 'Hello ' + world();   }   catch {      alert("Exception in 'hello': " + e);   }}</a>

<a>//In the above example, if an exception occurs within the 'world' method// method, it will not bubble up to the hello method and the developer will // quickly be able to find the source of the problem.</a>

<a>alert(hello());</a>

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<a>function helloWorld(){   alert('hello world');}</a>

<a>//The following will generate an error since no method named "HelloWorld()" //has been defined;</a>

<a>HelloWorld();</a>

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<a>function doSomething(){  alert(' ... something');</a>

<a>function doSomethingElse(){   alert(' ... something else');}</a>

<a>//The JavaScript engine will not recognize any of this script //  since the doSomething() method is missing a closing parentheses</a>

<a>doSomething();doSomethingElse();</a>

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<a>function notSupported(){   alert(blackberry.doesNotExist.propertyABC);}</a>

<a>//The code above will generate a runtime error when the JavaScript engine// tries to evaluate ".propertyABC".  The reason why is because the// "blackberry" object does not have a child object named "doesNotExist".</a>

<a>notSupported();</a>

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</p>
<p style="text-align: center;">This image is an embedded Resource: <img src="local:///embedded_image.png" height="16" width="16" /></p>
<p style="text-align: center;"><a>

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This image is saved on the file system:<img src="file:///store/home/user/pictures/file_system.jpg" height="16" width="16" />

This image is saved on the removable SD card:<img src="file:///SDCard/BlackBerry/pictures/removable.jpg" height="16" width="16" />

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<a>BUILDING commonPitfallscmd.exe /c bbwp C:sandboxweb appscommonPitfallsbuildcommonPitfalls.zip /o C:sandboxweb appscommonPitfallsbuild[INFO]                     Parsing command line options[INFO]                      Parsing bbwp.properties[INFO]                   Validating widget archive[ERROR]                Invalid widget archive - resource name is not valid(invalid-name.html)BUILD EXITED WITH 1 ERROR</a>