Sergey1986,
<!DOCTYPE html>
<html>
<head>
<title>Untitled</title>
<meta charset="utf-8">
<style type="text/css">
</style>
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.min.js"></script>
</head>
<body>
<div id="app">
<ul>
<li v-for="el of ar">
<div v-for="(value, key) of el">{{key}} : {{value}}</div>
</li>
</ul>
</div>
<script>
const app = new Vue({
el: "#app",
data: {
ar: [{events_id: "1",events_client_id: "1123"},{events_id: "2",events_client_id: "2"}]
}
});
</script>
</body>
</html>