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Editorial Team
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Asked: 2026-05-15T19:34:52+00:00

I have this JSP where I’m putting some values from a property to an

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I have this JSP where I’m putting some values from a property to an JavaScript array… it looks just like this:

<s:iterator value="parts" status="status">
    parts[<s:property value="category.categoryId" />][<s:property value="piezaId" />] = ['<s:property value="descripcion" />', '<s:property value="disponible" />'];
</s:iterator>

But sometimes when no category is setted for that part it looks like 

parts[1][460] = ['Vidrio Delantero RH', '1'];
parts[1][463] = ['Vidrio trasero LH', '1'];
parts[1][465] = ['Vidrio Trasero principal', '1'];
parts[1][462] = ['Vidrio trasero RH', '1'];
parts[][512] = ['Volanta', '1'];
parts[10][599] = ['Z de gu&iacute;a', '1'];
parts[1][692] = ['Farol de bumper delantero LH', '1'];

and that broke the JavaScript, in the part that looks like parts[][512]

In Struts1, I have the function logic:present, im looking for something equivalent/similar in struts2… Tried <s:if test="#category.categoryId.length() > 0"> but it never comes to true…

Any help will be appreciated…

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1 Answer

  1. Editorial Team

    Your empty value corresponds to a category.categoryId that is a empty string ? Or a null value? If the first, then I’d try <s:if test="category.categoryId.length() != 0"> or add a boolean method in your category class <s:if test="category.categoryIdNonEmpty">.

    I rather try to avoid complex logic with struts tags, and delegate that to the action. For example, I’d consider an additional method (say, partsWithId() alternative to getParts() ) that filters out the parts with empty categoryId, and then call <s:iterator value="partsWithId">

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