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https://issues.apache.org/jira/browse/GROOVY-3880?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Paul King closed GROOVY-3880.
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> Optional Assignment Operator
> ----------------------------
>
> Key: GROOVY-3880
> URL: https://issues.apache.org/jira/browse/GROOVY-3880
> Project: Groovy
> Issue Type: Improvement
> Components: syntax
> Reporter: Michael Martz
> Assignee: Daniel Sun
> Fix For: 3.0
>
>
> I find myself writing a lot of code in the following form:
> if(data.field) obj.field = data.field
> // Or
> obj.field = data.field?: obj.field
> It would be nice to have a groovy operator to handle this for me.
> obj.field ?= data.field
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