input form test (native)
HTML
<input id="myinput" name="myinput" size="30"/>
JavaScript
document.getElementById('myinput').addEventListener('blur',(ev)=>{
let {id, name, value} = ev.target
console.log({id,name,value});
})
<input id="myinput" name="myinput" size="30"/>
document.getElementById('myinput').addEventListener('blur',(ev)=>{
let {id, name, value} = ev.target
console.log({id,name,value});
})