how to use the istypedarray function from the underscore library in javascript

index.tsx
// include underscore.js library in your code

// define an array
var normalArray = [1, 2, 3];

// define a typed array
var typedArray = new Int8Array(4);

// check if the array is a typed array using istypedarray function from underscore.js
console.log(_.istypedarray(normalArray)); // false
console.log(_.istypedarray(typedArray));  // true
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