Can Jump Break bring some goods relating SEO. I mean can this be good or bad to apply in a blog if we talk about on-page optimization?
uhm i mean when i post an article i will put a jump break within that article so that when i post it and what will be shown in my home page is just the part of the article and there will be a link like "Read More" linking to the full article.. Is this somewhat considerable on-page SEO?
Yes you can use jump break in your article. It is good. Also, it will increase click rate of your website.
I think it's better to have the full article on your homepage or blog but that's just in my experience.
Yes, it results the inside linking of your site and increases the page rank. Good thing for no doubt. But there are some stylistics rules for you. Just try to gap your text for jump break right in the most interesting place to hook a reader to make him want the further reading. If you did well it would catch a visitor and he would click on read more.