Grails join Tag Examples

Mar 09, 2015 Tag comments

This will show examples on how to use the Grails join tag (<g:join>). This tag utilizes the Groovy join method to concatenate the toString() representation of each item in a list or collection. A custom separator can also be used for this tag.

Join Tag With Default Delimiter/Separator

Here is a sample code that uses the Grails join tag to concatenate items on a list.

<g:join in="['Apple', 'Banana', 'Carrot']" />

The output of the code above is this:

 Apple, Banana, Carrot 

Since a separator was not given, the default separator ", " (comma space) is used.

Join Tag With Custom Delimiter/Separator

Here is a modified sample code that uses Grails tag but with custom separator.

<g:join in="['Apple', 'Banana', 'Carrot']" delimiter="-" />

The output of the code is this:

Apple-Banana-Carrot 

Note that it uses the given custom delimiter "-" (dash) .

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Other Grails Tag Examples

• <g:actionSubmit>
• <g:actionSubmitImage>
• <g:checkBox>
• <g:collect>
• <g:country>
• <g:countrySelect>
• <g:currencySelect>
• <g:datePicker>
• <g:each>
• <g:else>
• <g:elseif>
• <g:findAll>
• <g:if>
• <g:join>
• <g:localeSelect>
• <g:remoteField>
• <g:textArea>
• <g:textField>
• <g:timeZoneSelect>
• <g:unless>
• <g:while>