how to reset develop branch to master

I have develop & master branches, my develop branch is messy now and i would like to reset it and make it as a copy of my master. i'm not sure if merging the master into develop will make both of them identical. after trying to merge i got many conflicts i solved them using:

git checkout develop
git merge origin/master
//got many conflicts
git checkout . --theirs

is this enough for develop branch to be an identical copy to master ?

Thanks

if you just want them to be the same thing

then

//from Develop and assuming your master is up to date with origin/master
git reset --hard master

If you want to make develop be identical to master, the simplest way is just to recreate the pointer:

git branch -f develop master

Or, if you already have develop checked out:

git reset --hard develop master

Note however that both of these options will get rid of any history that develop had which wasn't in master. If that isn't okay, you could preserve it by instead creating a commit that mirrored master's latest state:

git checkout develop
git merge --no-commit master
git checkout --theirs master .
git commit

Reset Last Commit

git reset HEAD~