Insert/Update Items - Filter & Map Array

array-filter-map.js

let jobs = [{id:44,selected:false},{id:12,selected:true}]
const handleChange = (item) =>{
  let existItemIndex;
  jobs.map((job,index)=>{
   (job.id === item.id) && (existItemIndex = index)
  })
  
    if(!existItemIndex){
      jobs = jobs.concat(item)
    }
    else{
      jobs[existItemIndex].selected = item.selected
    }
    const filteredJobs = jobs.filter((item)=>{
      return item.selected
    })
    
    const selectedJobs = [];
    filteredJobs.map((job)=>selectedJobs.push(job.id))
    
    console.log(selectedJobs)
}

handleChange({id:12,selected:true})