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<head>
<meta charset="utf-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title></title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
</style>
<script>
let arr = ['apple','banana','orange'];
let arr2 = Object.assign([], arr);
arr2.push('tomato');
console.log(arr2); //['apple','banana','orange','tomato']
console.log(arr); //['apple','banana','orange']
</script>
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<body>
</body>
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