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jQuery typeerror invalid ‘in’ operand a after WordPress upgrade
If you have happened to see this error “jQuery typeerror invalid ‘in’ operand a” in javascript console then it is most probably due to a third party library causing the error. Recently I updated a WordPress core to latest version of 4.4.1 and all of a sudden the ajax based page/post saving functionality of the…
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Fixing Broken Posts Navigation
According to the WordPress codex the get_previous_post and get_next_post should either return null or empty in single posts navigation when you are at the first or last post. If you come across a situation where these two handy functions do not work as expected then most probably you have installed a plugin which is interfering…