Expressions Appian Interview Questions

Senior Level Interview Questions

Interview Questions (5)

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Write an Appian expression to convert a one-dimensional array into a two-dimensional array, where each sub-array contains exactly N elements.Example:Input: array = { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 }, N = 2Output: { {1,2}, {3,4}, {5,6}, {7,8}, {9,10} }

To split {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} into groups of N, first work out how many groups you need: ceiling(length(array) / N). Ten items with N = 2 gives 5 groups, and rounding up...

A UAT user shares a production error screenshot displaying the generic message: "The system has encountered a problem. Contact your administrator." It includes an error number (e.g., 954c8:bb743). You do not have access to production screen or data access, but you do have access to the Development environment and the production server logs. How would you debug and resolve this issue?

Locate the Root Cause in the LogsAnalyze stdout Logs:I’d start with tomcat-stdOut.log on the production server. I’d look for the time of the error and check whether the stack trace...

Identify and print the capital, small, integers and symbols from the given string in Appian . For example if the given string is "AdhGy123@" Output:{ "A is cap", "d is Small", "h is Small", "G is cap", "y is Small", "1 is number", "2 is number", "3 is number", "@ is symbol" }

In Appian, you can classify the characters of a string in two ways: by comparing ASCII values or by matching Regular Expressions (regex). Both approaches label each character as a ...

You are given a custom list of maps in Appian, where each map contains fields like name and id. Some of the name values are either null or empty strings. How would you remove the entries that have a null or empty name field using Appian expressions?Input:{ a!map(id: 1, name: "AppianVerse"), a!map(id: 2, name: "Appian"), a!map(id: 3, name: null()), a!map(id: 4, name: "Java"), a!map(id: 5, name: null()), a!map(id: 6, name: "flutter"), a!map(id: 7, name: ""), a!map(id: 8, name: "") }Output:{a!map(id: 1, name: "AppianVerse"), a!map(id: 2, name: "Appian"), a!map(id: 4, name: "Java"), a!map(id: 6, name: "flutter")}

In Appian, you can remove employee records with a null or empty name by looping over the list with a!forEach(), checking each name with a!isNotNullOrEmpty(), and dropping the lefto...

In Appian, suppose you have a list of a!map objects with fields name and id. How can you sort this list alphabetically by the name field?

In Appian, we can use todatasubset() with a!pagingInfo() and a!sortInfo() to sort the list.Appian Expressiona!localVariables( local!data: { a!map(id: 1, name: "Interface"), ...

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