Documentation

Namespace: blob

blob

NIM Blob 工具方法, 通过 NIM.blob 来获取此工具的引用

Methods

<static> fromDataURL(dataURL)

将包含 MIME type 和 base64 数据的 data URL 转换为 Blob 对象

Parameters:
Name Type Description
dataURL String

包含 MIME type 和 base64 数据的 data URL
Returns:

Blob对象

Type
Blob
Example
var dataURL = 'data:image/jpeg;base64,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';
var blob = NIM.blob.fromDataURL(dataURL);
// blob instanceof Blob === true;