The string did not match the expected pattern in evaluateJavaScript

Question

I've loaded a page and am looking for all the <script> with type=text/javascript, but no matter what I do I get an exception

webView.evaluateJavaScript("document.querySelectorAll('script[type=text\\/javascript]').length;)

The string did not match the expected pattern.

webView.evaluateJavaScript("document.querySelectorAll('script[type=text/javascript]').length;)

The string did not match the expected pattern.

webView.evaluateJavaScript("document.querySelectorAll('script').length;)

19

Got no clue how to add a type filter in there, it works in the Console in Safari

You missed quotes around text/javascript. This works for me on FIrefox document.querySelectorAll('script[type="text/javascript"]') — VedantBang
– VedantBang, Commented Aug 4, 2021 at 4:10

dengST30 · Accepted Answer · 2021-08-04 10:07:31Z

1

It works for me

    func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
    webView.evaluateJavaScript("document.querySelectorAll('script[type=\"text/javascript\"]').length;") { result, err in
        print(result ?? "")
        print(err ?? "")
    }

}

@VedantBang's comment matters

edited Aug 4, 2021 at 10:07

answered Aug 4, 2021 at 9:23

dengST30

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