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JavaScript

Colin Warn
Colin Warn
6,358 Points
Posted by Colin Warn
Colin Warn
6,358 Points

document.querySelectorAll not getting a class that I'm looking right at?

Picture for context: http://imgur.com/a/1OF3v

To practice extracting text from HTML, I decided to open up a page on my college website to see if I could extract the names of the classes I planned to take.

I'm trying to extract the "Manufacturing Processes Lab" text. I initially tried document.getElementById('CRSE_DESCR$'), was returned an element with length zero and nil values. I then tried document.querySelectorAll('.PSHYPERLINK') to see if I could even get back an array with classes, still getting a result with length 0.

No idea what I'm doing wrong here. Any ideas given that I'm trying to extract "Manufacturing Process Lab"?

1 Answer

Steven Parker
Steven Parker
231,271 Points
Steven Parker
Steven Parker
231,271 Points

Did you change "document"?

I'm wondering if despite the error you managed to change the value of "document" on the previous line. Otherwise, I can't imagine why you would have gotten an empty NodeList.

I would refresh the browser and be careful not to make that same error in the console.