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Compose html - conditional (if a field is null or empty)?

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Posted on by BertP

I have been using the following expression in a flow to include a <br> in html whenever a field did not have a blank or null value:

if(greater(length(items('Apply_to_each')['Address2ndLine']),0),'<br>','')

Now, however, the flow complains that the function "length" expects it's parameter to be an array or a string, not of type 'Null'.

I don't know if the function "length" has changed in its requirements.

Can anyone suggest a suitable replacement test for string vs null values?

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BertP on at

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Re: Compose html - conditional (if a field is null or empty)?

Perfect! Thank you so very much!
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v-chengfen-msft on at

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Re: Compose html - conditional (if a field is null or empty)?

Hi @BertP ,
Do you want to check if the content is empty?
please try :
If the content is empty, it is '', if not empty, it is '<br>'
if(empty(items('Apply_to_each')['Address2ndLine']),'','<br>')

If this post helps, then please consider Accept it as the solution to help the other members find it.

Best Regards
Cheng Feng

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