LAMBDA function

[BrianHung]

Wondering if there is any plan in supporting the LAMBDA function from Excel and Sheets
https://support.microsoft.com/en-us/office/lambda-function-bd212d27-1cd1-4321-a34a-ccbf254b8b67

Think it would be a good supplement to needing to write custom function plugins, and just allow the end user to write formulas they want.

[adrianszymanski89]

Hi @BrianHung

Thank you for this suggestion. I agree that supporting the Lambda function might be a great improvement for Hyperformula.

@sequba let us know what you think about the possibility of implementing it.

[sequba]

Yes, it is a very good idea, but we still have some bugs that we need to focus on before we could put our efforts into adding new functionalities.

[BrianHung]

Any clue on hard it would be to implement as a custom plugin? Difficult part would be taking the arguments, and then parsing and evaluating it. Wonder if it requires some hyperformula internals not currently exposed for this (?).

[sequba]

We didn't consider LAMBDA when we thought about custom functions. Neither formula parser nor evaluator is exposed.

[sequba]

More info: #1478 (comment)