stackanswer
HTML
<button id="test-0"> btn1
</button>
<button id="test-1"> btn1
</button>JavaScript
var profiles = [
{platform:"windows",region:"us",username:"admin1"},
{platform:"linux",region:"uk",username:"admin2"}
];
profiles.forEach(function(item, i) {
console.log(i);
document.getElementById("test-" + i).addEventListener("click", function() {
alert("Clicked -"+i);
})
})