How to redirect 404 to home page?

Question

When I Delete Duplicate Question Than Showing 404 (Not. Found).

How to Redirect All 404 To Home Page Directly.

Comments

redirect in htaccess file

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Not a good idea, this will be really bad for SEO.

404 should stay 404.

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this won't be good for site. 404 must stay 404 and don't need redirect to 200 page

Answer 1

place this code to .htaccess file 

ErrorDocument 404 http://www.example.com/error.html