注意: 此页面尚未翻译成中文。以下内容为英文原版。 
function decodeBase64(value): Uint8Array
Decodes the base-64 encoded value.

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Parameters

ParameterTypeDescription
valuestringThe base-64 encoded value.

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Returns

Uint8Array The decoded binary data.

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Example

// The decoded value is always binary data...
result = decodeBase64('SGVsbG8gV29ybGQhIQ==');

// ...use toUtf8String to convert it to a string.
toUtf8String(result);

// Decoding binary data
decodeBase64('EjQ=');

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Source

encoding/base64.ts:30