Window atob()Method
Window ObjectDefinition and Usage
The atob() method is used to decode a string that has been encoded using base-64 encoding.
The base-64 encoding method isbtoa() 。
Syntax
window.atob(encodedStr)
Parameter Description:
- encodedStr: Required. A string that has been encoded using the btoa() method.
Return Value
This method returns a decoded string.Browser Support
The numbers in the table specify the first browser version that fully supports the method.
| Method | |||||
|---|---|---|---|---|---|
| atob() | Yes | 10.0 | 1.0 | Yes | Yes |
Example
Example
Display an alert box:
var str = "EXAMPLE";
var enc = window.btoa(str);
var dec = window.atob(enc);
var res = "The encoded string is:" + enc + "<br>" + "The decoded string is:" + dec;
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