isBlob#

Check if the given value is a Blob.

Usage Scenarios#

• Data Validation: When handling file uploads or working with binary data, you need to ensure that a certain value is a Blob before performing subsequent operations, such as reading or uploading the data.
• Function Parameter Validation: In a function, when a Blob is expected as a parameter, you can use the isBlob method to verify the parameter type, avoiding errors caused by passing non-Blob values.
• Conditional Judgment: Execute different logic based on whether a value is a Blob.

Examples#

import { isBlob } from 'funtool';

isBlob(new Blob()); // ✅ true
isBlob({}); // ❌ false

Signature#

function isBlob(v: any): v is Blob

Parameters#

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

Returns#

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