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adam_gataev's avatar
adam_gataev
New Contributor II
2 years ago
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IF Statement in Expressions Library file

Hi, I have an expressions library file which creates a JSON object like this:   ... .map((elem, idx, arr) => { "fieldA": elem.fieldA, "fieldB": [ { ...
Expression Language and Expression Libraries
  • koryknick's avatar
    koryknick
    2 years ago

    adam_gataev - you were very close - try this

     

    .map((elem, idx, arr) =>
    {
        "fieldA": elem.fieldA,
        "fieldB": [
            {
                "fieldC1": elem.fieldC1,
                "fieldC2": elem.fieldC2
            }
        ]
        .concat(
	       elem.get('fieldD1') > ''
	       ? [
   	            {
                    "fieldD1": elem.fieldD1,
                    "fieldD2": elem.fieldD2
                }
	        ] 
	       : []
        )
        .concat(
           elem.get('fieldE1') > ''
	       ? [
                {
                    "fieldE1": elem.fieldE1,
                    "fieldE2": elem.fieldE2
                }
             ] 
	        : []
    )
    }
)

     

    Hope this helps!

koryknick's avatar
koryknick
Employee
2 years ago
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adam_gataev - you were very close - try this

 

.map((elem, idx, arr) =>
    {
        "fieldA": elem.fieldA,
        "fieldB": [
            {
                "fieldC1": elem.fieldC1,
                "fieldC2": elem.fieldC2
            }
        ]
        .concat(
	       elem.get('fieldD1') > ''
	       ? [
   	            {
                    "fieldD1": elem.fieldD1,
                    "fieldD2": elem.fieldD2
                }
	        ] 
	       : []
        )
        .concat(
           elem.get('fieldE1') > ''
	       ? [
                {
                    "fieldE1": elem.fieldE1,
                    "fieldE2": elem.fieldE2
                }
             ] 
	        : []
    )
    }
)

 

Hope this helps!

adam_gataev's avatar
adam_gataev
New Contributor II
2 years ago
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Hi koryknick,

Thank you again for replying!

Is there a way to check whether the value of elem.fieldD1 is null? The field elem.fieldD1 itself always exists, but the value is null sometimes. My bad for explaining it incorrectly.

I tried: elem.fieldD1 != null ? ...

But it did not work.