If you find yourself typing the same parameters over and over, you can save time by changing the default attributes. These can always be overridden by specifying new attributes on an individual shortcode. For instance, let’s say you always list 20 posts with excerpts: We can use the following to set these as the default: […]
Filter: shortcode_atts_display-posts
Change the default arguments of the shortcode. For instance, if you want all shortcodes to have include_excerpt=”true” and include_author=”true”, you could use this to set it once and then not have to include those parameters on all shortcodes.