How to select specified node within Xpath node sets by index with Selenium?

Question

I'm writing a Selenium test case. And here's the XPath expression I use to match all 'Modify' buttons within a data table.

//img[@title='Modify']

My question is, how can I visit the matched node sets by index? I've tried with

//img[@title='Modify'][i]

and

//img[@title='Modify' and position() = i]

But neither works... I also tried with the XPath checker(One firefox extension). There's a total of 13 matches found, then I have totally no idea how am I gonna select one of them.. Or does XPath support specified a selection of nodes which are not under the same parent node?

Answer 1

To select a specified node within the XPath node use this 

//someName[3]

This line means all someName elements in the document those are the third someName child of their parent.

There may be a chance of having many elements

If you need exactly third someName element use this

  (//someName)[3]

Let me explain [] has more priority than //  and one more thing put all expressions of this type //someName in brackets when you need to specify a node of your selected node-list.

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