isDataView#

Check if the given value is a DataView.

Usage Scenarios#

• Data Validation: When dealing with low - level binary data manipulation, you need to ensure that a certain value is a DataView before performing operations like reading or writing data at specific byte offsets.
• Function Parameter Validation: In a function where a DataView is expected as a parameter, you can use the isDataView method to verify the parameter type, avoiding errors caused by passing non - DataView values.
• Conditional Judgment: Execute different logic based on whether a value is a DataView.

Examples#

import { isDataView } from 'funtool';

isDataView(new DataView(new ArrayBuffer(1))); // ✅ true
isDataView([]); // ❌ false

Signature#

function isDataView(v: any): v is DataView

Parameters#

• v (any): The value to test if it is a DataView.

Returns#

• (v is DataView): Returns true if the value is a DataView, otherwise returns false.