Currently, I am studying the JavaScript for automation session at WWDC. Here is an example taken from slide 99 that I am working on. On a fresh installation of Yosemite, I encountered an error on line 3.
Safari = Application('Safari')
doc = Safari.document[0]
url = doc.url() // -> this is where the issue occurs
doc.url = 'http://apple.com'
There is a small error on the slide. The correction needed is in the second line:
doc = Chrome.documents[0]
^
Change documents (plural) instead of using document.
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