<HTML>
<body>
</body>
<script>
let map = new Map();
map.set("name", "John");
let keys = Array.from(map.keys());
// Error: keys.push is not a function
keys.push("more");
alert(keys);
</script>
</HTML>
<!--
-->
<body>
</body>
<script>
let map = new Map();
map.set("name", "John");
let keys = Array.from(map.keys());
// Error: keys.push is not a function
keys.push("more");
alert(keys);
</script>
</HTML>
<!--
-->
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