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In XPath, there are seven kinds of nodes: element, attribute, text, namespace, processing-instruction, comment, and document nodes. XML documents are treated as trees of nodes. The topmost element of the tree is called the root element.
The "and " operator is used to combining two different conditions or attributes to identify any element from a webpage using XPath efficiently. For example, if we have two attributes, a and b, we can combine both to uniquely identify an element on the webpage using the "and " operator.
XPath defines several node tests that can be used to select nodes from the source tree. Strictly speaking, any XPath expression can be considered a node test; the expression para , for example, selects all <para> elements from the context node.
All title nodes with zipcode or book node as parent:
Version 1:
//title[parent::zipcode|parent::book]
Version 2:
//bookstore/book/title|//bookstore/city/zipcode/title
Version 3: (results are sorted based on source data rather than the order of book then zipcode)
//title[../../../*[book or magazine] or ../../../../*[city/zipcode]]
or - used within true/false - a Boolean operator in xpath
| - a Union operator in xpath that appends the query to the right of the operator to the result set from the left query.
If you want to select only one of two nodes with union operator, you can use this solution:
(//bookstore/book/title | //bookstore/city/zipcode/title)[1]
It the element has two xpath. Then you can write two xpaths like below:
xpath1 | xpath2
Eg:
//input[@name="username"] | //input[@id="wm_login-username"]
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