javascript Global atob( ), btoa( )
atob( ), btoa( ) | Firefox/Netscape/NN 4 IE n/a ECMA n/a |
atob("base64EncodedData") btoa("stringToBeEncoded") | |
These methods let you convert arbitrary strings (including strings conveying characters representing binary data and Unicode values) to a 65-character subset of the U.S.-ASCII character set. Encoding in this so-called base64 scheme allows any data to be conveyed along even the most rudimentary transport mechanism. You can read about the rationale and internal mechanisms of the encoding/decoding conversions in RFC 1521 of the Internet Engineering Task Force (http://www.ietf.org/rfc/rfc2045.txt). |
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Use the btoa( ) method to encode string data into the base64 scheme. The resulting encoded data will consist of ASCII characters a-z, A-Z, 0-9, and three symbols (/, +, =). Use the atob( ) method to decode base64 encoded data back to its original version. |
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Parameters | |
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Returned Value | |
A string. |
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