performance.tar.gz

Puppeteer

XPath, or XML path, is a query language used for locating a node from a DOM. It is one of the most common ways of identifying an element while writing Selenium UI tests.

In this course, you will learn various techniques for writing an expression that identifies a complex locator. In the process, you will also learn the tips and tricks of writing an efficient and optimized locator. We have used puppeteer with Javascript to demonstrate evaluating an XPath expression in this course.

This course is designed for both beginner and intermediate level developers, as well as QA engineers who want to master the art of writing effective XPath expressions.

Mastering XPath for Selenium

# What is an XPath operator?

XPath operators are defined on nodes/elements, returning either a _node-set, a string, a boolean, or a number,_ as shown in the example below.

# HTML structure considered for demonstration

Let us consider the following HTML structure to learn about the different operators present in XPath:


```html
<table>
 <tr>
 <td>1</td>
 <td>2</td>
 <td>3</td>
 </tr>
 <tr>
 <td>4</td>
 <td>5</td>
 <td>6</td>
 </tr>
 <tr>
 <td>7</td>
 <td>8</td>
 <td>10</td>
 </tr>
</table>
```

# List of operators

The table below shows the list of operators that can be used in XPath:

This lesson comprehensively discusses the operators that are provided by XPath. 

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XPath Operators

What is an XPath operator?

HTML structure considered for demonstration