When creating a web scraper we always have a goal in mind. There are specific data points we want to collect in order to accomplish whatever we’re trying to achieve.
Whether it is to analyze trends, create a database of content for marketing purposes, build a repository with real estate listings, etc. The last thing we need is for our scraper to return huge amounts of unnecessary data, adding noise we then need to clean.
In other words, every web scraper needs a parser, and there’s no easier way to build one than using CSS selectors.
https://www.scraperapi.com/blog/css-selectors-cheat-sheet/
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