Overview

This adds a jint (javascript) transform to Transformalize using Jint.

Documentation will be written in the near future by AI 👌. For now, see Tests.

Usage

<cfg name="Test">
    <entities>
        <add name="Test">
            <rows>
                <add text="SomethingWonderful" number="2" />
            </rows>
            <fields>
                <add name="text" />
                <add name="number" type="int" />
            </fields>
            <calculated-fields>
                <add name="evaluated" t='jint(text + " " + number)' />
            </calculated-fields>
        </add>
    </entities>
</cfg>

This produces SomethingWonderful 2

Benchmark

BenchmarkDotNet v0.14.0, Windows 11 (10.0.22631.4602/23H2/2023Update/SunValley3)
AMD Ryzen 7 5800X, 1 CPU, 16 logical and 8 physical cores
.NET SDK 9.0.101
  [Host]     : .NET 8.0.11 (8.0.1124.51707), X64 RyuJIT AVX2
  DefaultJob : .NET 8.0.11 (8.0.1124.51707), X64 RyuJIT AVX2

Method	Mean	Error	StdDev	Ratio
'5000 rows'	108.1 ms	0.83 ms	0.78 ms	1.00
'5000 rows 1 jint'	128.7 ms	1.38 ms	1.16 ms	1.19
'5000 rows 1 jint with dates'	141.9 ms	0.56 ms	0.47 ms	1.31