linkedin_mass_accept.js

//Head on to https://www.linkedin.com/mynetwork/invitation-manager/
//In browser console
var buttons = document.getElementsByTagName('button')
for (let i = 0; i < buttons.length; i++) {
  var aria = buttons[i].getAttribute("aria-label")
  if (aria && aria.startsWith("Accept")) {
     buttons[i].click()
     console.log(aria)
  }
}