Router pop and append

[sakgoyal]

Goals

all of these are for the pages router. not the app router

1. implement a pop() function on the useRouter in next/link to make it easier to handle removing the end of the url, especially when using dynamic routes.

for example:
/blog/[slug]/edit
pop function will take you to blog/[slug]
current method is quite tedious:

router.push(router.asPath.replace(/\/edit$/, ''), undefined, { shallow : true });

2. implement a append() function to the useRouter in next/link to make it easier to append to urls when using dynamic routes.

for example:
blog/[slug]
append('edit') should take you to blog/[slug]/edit
current method:

router.push('/edit', router.asPath + '/edit', { shallow : true });

just in general, handling with the router when using dynamic routes is very confusing and error prone. there should be easier ways to handle this.

if I missed a feature that already exists, please let me know.