Javascript function String.prototype.localeCompare() does not support option ignorePunctuation within karate

[blaisn]

Hello,
When comparing 2 strings for sorting purposes, we use the function localeCompare.
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/localeCompare
This function takes 3 arguments:

• the string to compare with
• the locale to use
• some options

The present issue concerns the "option" argument. One of the possible option is "ignorePunctuation" that can be true/false.
It seems that the documented behavior of this option (see link above) is not respected when we use it inside a karate scenario.
For example, running these scenarios with the latest release of karate.jar (1.3.1):

    Scenario: success and behaves as expected
        * def value1 = "abc";
        * def value2 = "abc";
        And match value1.localeCompare(value2, "en", { ignorePunctuation: true }) == 0
    Scenario: success but do not behaves as expected
        * def value1 = "abc";
        * def value2 = "a,bc";
        And match value1.localeCompare(value2, "en", { ignorePunctuation: true }) == 1

(both scenarios are passing)
We can see that introducing punctuation changes the result of the function but should not.
Trying with other locales or other punctuation signs does not have an effect.

I tried the function on nodejs v16.18.1:

{
    const value1 = "abc";
    const value2 = "abc";
    const compare = value1.localeCompare(value2, "fr", { ignorePunctuation: true });
    console.log(compare); // 0
}
{
    const value1 = "abc";
    const value2 = "a,bc";
    const compare = value1.localeCompare(value2, "fr", { ignorePunctuation: true });
    console.log(compare); // 0
}

and the results are as expected.
Why is the javascript called by karate behaves differently than the one we use outside?

Thanks

[ptrthomas]

because the JS engine is Graal and it does have some quirks. for this use-case I recommend using the JDK locale helpers via Java interop. I am tagging this issue as help wanted

[blaisn]

Thanks for your response. I'll try with JDK locale helpers.
For my curiosity, which version of GraalVM is embedded in karate 1.3.1?

[ptrthomas]

@blaisn don't remember exactly but you can get details here: #2148

[ptrthomas]

closing this as a wont fix PRs welcome against this ticket