The WindowBase64 helper contains utility methods to convert data to and from base64, a binary-to-text encoding scheme. For example it is used in data URIs.
There is no object of this type, though the context object, either the Window for regular browsing scope, or the WorkerGlobalScope for workers, implements it.
Properties
This helper neither defines nor inherits any properties.
Methods
This helper does not inherit any methods.
WindowBase64.atob()- Decodes a string of data which has been encoded using base-64 encoding.
WindowBase64.btoa()- Creates a base-64 encoded ASCII string from a string of binary data.
Specifications
| Specification | Status | Comment |
|---|---|---|
| HTML Living Standard The definition of 'WindowBase64' in that specification. |
Padrão em tempo real | No change since the latest snapshot, HTML 5.1. |
| HTML 5.1 The definition of 'WindowBase64' in that specification. |
Recomendação | Snapshot of HTML Living Standard. No change. |
| HTML5 The definition of 'WindowBase64' in that specification. |
Recomendação | Snapshot of HTML Living Standard. Creation of WindowBase64 (properties where on the target before it). |
Browser compatibility
Estamos convertendo nossos dados de compatibilidade para o formato JSON.
Esta tabela de compatibilidade ainda usa o formato antigo,
pois ainda não convertemos os dados que ela contém.
Descubra como você pode ajudar!
| Feature | Firefox (Gecko) | Chrome | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|
| Basic support | 1.0 (1.7 or earlier) [1] | (Yes) | 10.0 | (Yes) | (Yes) |
| Feature | Firefox Mobile (Gecko) | Android | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|
| Basic support | 1.0 (1) | (Yes) | (Yes) | (Yes) | (Yes) |
[1] atob() is also available to XPCOM components implemented in JavaScript, even though Window is not the global object in components.