Hello everybody, a question about expressions and arrays here. I have

Jin Pheh

Certified Associate Developer

over 10 years ago

Hello everybody, a question about expressions and arrays here.

I have a function that takes an array of users.

I have multiple arrays of users that I want to call my function on after applying a merge (ie: I want to call my function on the first element of each array, then the second of each array, etc etc). However the apply function treats the result of a merge as individual arguments instead of a single array object when calling my expression. Wrapping the _ placeholder in the apply function with curly brackets causes a syntax error as does casting the result of the merge to a user list.

Has anyone dealt with this before and if so how did you resolve it?

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0 Mike Schmitt
Certified Lead Developer
over 10 years ago

Yes, you do need to pass the whole object down through the evaluating expression, but as I mentioned before, you can utilize property() to handle multiple different types of CDT in one expression (instead of one separate sub-rule for each different type).

As far as apply() goes, in my experience it's a bit finnicky in what it accepts. For instance it'll accept the larger chunks of a list created by merge(), but it doesn't seem to like handling array-of-arrays in any other way (that i've tried).
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0 Mike Schmitt
Certified Lead Developer
over 10 years ago

Yes, you do need to pass the whole object down through the evaluating expression, but as I mentioned before, you can utilize property() to handle multiple different types of CDT in one expression (instead of one separate sub-rule for each different type).

As far as apply() goes, in my experience it's a bit finnicky in what it accepts. For instance it'll accept the larger chunks of a list created by merge(), but it doesn't seem to like handling array-of-arrays in any other way (that i've tried).
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