xcode - document.getElementsByClassName subgroup

Question

I want to get the value of a table cell. but when I choose the class, I get all values of the row. How can I specify may selection? My code since now: [myWebView stringByEvaluatingJavaScriptFromString:@"document.getElementsByClassName('class_Name')[0].innerText;"];

My Idea was to make it like this but it does not work:

[waerungskurse stringByEvaluatingJavaScriptFromString:@"document.getElementsByClassName('charts_table_content')[0].[2].innerText;"]; The Number is the column I want to select.

Answer 1

document.getElementsByClassName('class')[0].getElementsByClassName('subClass')[0].innerText;