Issue with jqWidgets 5.3.2 on IE11: TypeError: Argument not optional

[jvoutParticipant]

Hello,

I updated jqWidgets from 4.6.4 to 5.3.2, and now jqWidgets give strange error on IE:
“TypeError: Argument not optional
at jqxLoaderComponent.prototype.moveClasses (http://localhost:4200/vendor.bundle.js:6322:10)
at jqxLoaderComponent.prototype.createComponent (http://localhost:4200/vendor.bundle.js:6339:9)
at jqxLoaderComponent.prototype.ngOnInit (http://localhost:4200/vendor.bundle.js:6272:13)
at checkAndUpdateDirectiveInline (http://localhost:4200/vendor.bundle.js:80628:9)
at checkAndUpdateNodeInline (http://localhost:4200/vendor.bundle.js:82128:13)
at checkAndUpdateNode (http://localhost:4200/vendor.bundle.js:82068:9)
at debugCheckAndUpdateNode (http://localhost:4200/vendor.bundle.js:82932:5)
at debugCheckDirectivesFn (http://localhost:4200/vendor.bundle.js:82873:13)
at Anonymous function (Function code:40:9)
at debugUpdateDirectives (http://localhost:4200/vendor.bundle.js:82858:5)”

This occurs four times on pageload.

I have multiple jqWidgets in the page.
The error seems to be in createComponent (this I confirmed taking jqxLoader off, one of the error messages disappeared).

Any ideas, where should I start looking? Page is doing fine in other browsers, and no any error messages in console. Also in jqWidgets version 4.6.4 everything is working fine also on IE.

[Peter StoevKeymaster]

From this message, you probably use a method without passing arguments to it and arguments are required in this version.

[jvoutParticipant]

Error is occurring on pageload, and I use auto-create of jqWidgets, so I’m not calling the createComponent myself. And how could it be working on other browsers?

[jvoutParticipant]

I changed each of the components moveClasses from:

moveClasses(parentEl: HTMLElement, childEl: HTMLElement): void {
let classes: any = parentEl.classList;
childEl.classList.add(…classes);
parentEl.className = ”;
}

to:

moveClasses(parentEl: HTMLElement, childEl: HTMLElement): void {
let classes: any = parentEl.classList;
if (classes.length > 0) {
childEl.classList.add(…classes);
}
parentEl.className = ”;
}

And now its working. Should this be on some update?

[jvoutParticipant]

Are there any updates for this? Is jqWidgets possibly fixing this error with some upcoming update?

[Peter StoevKeymaster]

There is no such issue in current version of our Angular components.

[Author]

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