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Lodash _.isTypedArray


The lodash library provides a wide range of functionalities to perform complex operations on JavaScript objects and arrays. One of these features is the _.isTypedArray method. This method can be used to determine whether a given value is a typed array or not. A typed array is an array-like object that represents an array of elements where each element is a fixed-size value, either a signed or unsigned integer, or a floating point value.

The _.isTypedArray method takes a single argument, which is the value to be checked. If the value is found to be a typed array, this method returns true; otherwise, it returns false.

The _.isTypedArray method is capable of handling all the typed arrays, including Int8Array, Uint8Array, Uint8ClampedArray, Int16Array, Uint16Array, Int32Array, Uint32Array, BigInt64Array, BigUint64Array, Float32Array, and Float64Array.

Here's an example of how to use the _.isTypedArray method:

const _ = require('lodash');
const int8Array = new Int8Array([1, 2, 3]);
const uint16Array = new Uint16Array([1, 2, 3]);

console.log(_.isTypedArray(int8Array)); // Output: true
console.log(_.isTypedArray(uint16Array)); // Output: true
console.log(_.isTypedArray([1, 2, 3])); // Output: false

In the above example, we first create two typed arrays, int8Array and uint16Array, using the Int8Array and Uint16Array constructors, respectively. We then pass these arrays to the _.isTypedArray method, which returns true for both arrays. Finally, we check the result for a normal array, which returns false.

In conclusion, the _.isTypedArray method of the lodash library is a useful function for checking whether a given value is a typed array or not. It offers a simple and convenient way to work with these specialized array-like objects in JavaScript.