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https://issues.apache.org/jira/browse/JEXL-226?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16064618#comment-16064618
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Henri Biestro commented on JEXL-226:
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Aliases we have (eq, etc...) are witnesses of a long past; I wish there was an
easy way to deprecate them...
Back to null coalescing, after carefully reviewing the various semantics
associated with '?:' and '??', it might be worth adding an actual strict 'null
coalescing' operator. It would only return the right hand side if the left hand
side is null (or undefined for a variable). The difference would be as such:
{code}
var a = false;
a ?? 'other value' ; // returns false
a ?: 'other value' ; // returns 'other value'
var b = 0;
b ?? 'other value' ; // returns 0
b ?: 'other value' ; // returns 'other value'
{code}
> add ?? operator support
> ------------------------
>
> Key: JEXL-226
> URL: https://issues.apache.org/jira/browse/JEXL-226
> Project: Commons JEXL
> Issue Type: New Feature
> Affects Versions: Later
> Reporter: Min Wei
> Labels: features
> Fix For: Later
>
> Original Estimate: 1h
> Remaining Estimate: 1h
>
> Jexl already supports null-coalescing semantics with the operator "?:". So it
> should be a simple matter to extend it with a different syntax.
> https://docs.microsoft.com/en-us/dotnet/csharp/language-reference/operators/null-conditional-operator
> https://github.com/apache/commons-jexl/pull/4
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