final.js

const actions = ()=>{
  const functionA = ()=>{/*do sth*/}
  const functionB = ()=>{/*do sth*/}
  const functionC = ()=>{/*send log*/}
  return new Map([
    [/^guest_[1-4]$/,functionA],
    [/^guest_5$/,functionB],
    [/^guest_.*$/,functionC],
    //...
  ])
}

const onButtonClick = (identity,status)=>{
  let action = [...actions()].filter(([key,value])=>(key.test(`${identity}_${status}`)))
  action.forEach(([key,value])=>value.call(this))
}