![]() const elements = token.split('.') Ĭonst payload = JSON. Decode string in base64 and load as array JS. ![]() The regex replacement is optional and is just there to deal with prefix as in the case of dataurl string. The characters in the set are supported by all systems and are distinct from the underlying values they map to. So the encoded text can be represented using only these characters. The set of 6-bit Base64 characters allows for 64 distinct printable characters. Then, I decode the JWT payload and then parse it into JSON object. base64String is the string containing the base 64 string. JavaScript provides Base64 decoding among its built-in functions. To use this function to decode the Base64URL string, I use JWT token as an example. The return value is in the form of a string containing only characters in the range from U+0000 to U+00FF, each representing a binary byte with values 0x00 to 0xFF. If (len > L + 2 & ((s.charAt(L+2) != PADCHAR) || !padding)) code(input) This function takes a base64-encoded string (the input parameter) and decodes it. I wrote a function that can decode both Base64 and Base64URL directly without any other dependency. I think the most efficient way of doing Base64/Base64URL decoding is to decode directly in a function instead of changing Base64URL into Base64 and then decoding it. ![]()
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