Monday, December 27, 2021
The Array.isArray() method is a useful method to determine object is of type array. Let's demonstrate with some code.
The code above tests to see if the oilPrices array is of type array which it is, and then it tests to see iamObject is an array. The console.log out put should return true, and the second console.log should return false.
<script>
var oilPrices = [70.15, 69.50, 71.23, 74.32, 69.50, 76.99];
var iamObject = new Object();
console.log(Array.isArray(oilPrices));
console.log(Array.isArray(iamObject));
</script>
The code above tests to see if the oilPrices array is of type array which it is, and then it tests to see iamObject is an array. The console.log out put should return true, and the second console.log should return false.
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