Control Zoom-in With Plugin

Hey To all..hope you all are fine.
I am using the leaflet plugin for my WordPress site and not i get to stuck at a point where i need little help from the you guys

I had a map and using zoomControl within it and now i want to put a limit on that zoom-in like if i put the limit to 7 so the user can not be able to click on the + button when the zoom = 7

Kidnly need help in this…any type of help would be appreciated