Web-Scraping using Selenium Master

Overview

Web-Scraping using Selenium

What is the need of Selenium?

Some websites don't like to be scrapped and in that case you need to disguise your webscraping bot as a Human Being.

What is locator or css selector or xpath?

Locator can be termed as an address that identifies a web element uniquely within the webpage. Locators are the HTML properties of a web element which tells the Selenium about the web element it need to perform action on.

There is a diverse range of web elements. The most common amongst them are:

Text box Button Drop Down Hyperlink Check Box Radio Button

Types of Locators in Selenium

Photo Credit - www.softwaretestinghelp.com

Locators in Selenium

XPATH

Xpath is used to locate a web element based on its XML path. XML stands for Extensible Markup Language and is used to store, organize and transport arbitrary data. It stores data in a key-value pair which is very much similar to HTML tags. Both being mark up languages and since they fall under the same umbrella, xpath can be used to locate HTML elements.

The fundamental behind locating elements using Xpath is the traversing between various elements across the entire page and thus enabling a user to find an element with the reference of another element.

CSS-Selector

CSS Selector is combination of an element selector and a selector value which identifies the web element within a web page. The composite of element selector and selector value is known as Selector Pattern.

Photo-Credit - www.softwaretestinghelp.com

Primitive types of CSS Selector

Different Types of CSS Selector

Owner
Md Rashidul Islam
Md Rashidul Islam
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