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After more than 13 years, and tens of thousands of questions, Moz Q&A closed on 12th December 2024. Whilst we’re not completely removing the content - many posts will still be possible to view - we have locked both new posts and new replies. More details here.
No, that's not true.
Think SASS or SCSS are processed at server-side, and get a normal CSS stylesheet to the client.
SASS or SCSS can help you to manage your CSS files and classes, but you need to pre-process them to generate the final CSS sended to the client. If the final product doesn't change, seo will not change too.
Any javascript effor is invalid for SEO. Google doesn't read them.
You can try to make it on PHP, it's not complex, search your an replace with meta desc=$var and <title>$var2 (and, also, </head>). Then you can set the meta desc and page title with a variable in your code, and then this effor effectively have SEO value, because when the search engine fetch the page they have title and desc.</p> <p>Maybe this is more work than JS form, but also it's better for SEO and web itself (The JS run takes time on client side).</p></title>