Difference between wp_print_scripts, wp_enqueue_scripts and wp_register_scripts

I had lot of confusion earlier while enqueuing or dequeuing a script in wordpress. I was not sure which function to use and would just keep on using various functions on a trail and error basis. Hope below points would help to clarify atleast a few things with regards to when we should use a particular function wp_register_scripts This just registers the script but does not actually queue it for execution wp_enqueue_scripts This is used to enqueue a script which is required to be executed on our template. A script can be enqueued without registering it i.e. without using wp_register_scripts. wp_print_scripts This is an action which prints/outputs/shows up the scripts on our template for execution When to use wp_register_script You may be wondering why would I use wp_register_scripts and why not just directly use wp_enqueue_scripts The answer to that is if you are developing a custom plugin and wish to execute a script only on certain pages then it helps to just register the script and then programatically enqueue it on the required pages.  ...
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