const companies=[ {name:"facebook",start:"100",end:"110"}, {name:"amazon",start:"123",end:"321"},{name:"bamboo",start:"34",end:"45"}, {name:"netflix",start:"20",end:"223"} ] const ages = [31,21,11,3,15,32,53,34,15,76,79,84,91] //For each companies.forEach((item)=>{console.log(item["name"] + "..elements")}); output: facebook :elements amazon :elements // filter out ages that are below 21 (remove elements less than 21) //filter const canSmoke=ages.filter((age)=>(age> 21 )) console.log(canSmoke) const oldestCompany = companies.filter((comp)=>{ if (comp.end> 100 ){ return true ;} }) //console.log("The oldest is: " + JSON.stringify(oldestCompany)) console.log( "The oldest is: " + oldestCompany) oldestCompany.forEach(x=>console.log(x)) const eightiesCompany = companies.filter...