Support ES2015 default parameter for functions

[buttonfly1000]

Hi.

I found such a js functon

function f(b = 1) {return b;}

would yield an exception:

org.mozilla.javascript.EvaluatorException: missing ) after formal parameters

Would it be possible to support default parameter for functions?

Thanks!

[cbartolome]

Bootstrap 5 started using default parameters in its JavaScript code, so Selenium tests using the HtmlUnit driver all report the above error now, when using the un-minified code. The minified code produces this error:

com.gargoylesoftware.htmlunit.ScriptException: missing formal parameter (http://localhost:35193/webjars/bootstrap/5.0.1/js/bootstrap.bundle.min.js#6)

[exabrial]

Bootstrap 5 started using default parameters in its JavaScript code, so Selenium tests using the HtmlUnit driver all report the above error now, when using the un-minified code. The minified code produces this error:

com.gargoylesoftware.htmlunit.ScriptException: missing formal parameter (http://localhost:35193/webjars/bootstrap/5.0.1/js/bootstrap.bundle.min.js#6)

I seem to be getting the same error with bootstrap using the non-minified code. When you tested, what version of bootstrap were you using? I'm hoping they didn't switch to default parameters for the non-min version. Thank you!

[cbartolome]

That was version 5.0.1 (it's in the error message). Both the un-minified and the minified versions produce errors. They're just slightly different, so I posted the error the minified version produces to make this issue easier to search for.

[p-bakker]

Closed by #1640