base64
decode
js
decode(input, [options])Decoding a base64-encoded string to a utf8 string, hex string or byte array.
Since
0.3.0
Arguments
input (string)[options = {} (Object)][encoding = 'utf8' (string)]: The encoding of output, it can be'utf8'or'hex'or'binary'.
Return
(string | Array)
Example
js
const input = 'aGVsbG8g5L2g5aW9'
// Output a utf8 string
decode(input)
// => 'hello 你好'
// Output a hex string
decode(input, { encoding: 'hex' })
// => '68656c6c6f20e4bda0e5a5bd'
// Output a byte array
decode(input, { encoding: 'binary' })
// => [104, 101, 108, 108, 111, 32, 228, 189, 160, 229, 165, 189]decodeFile
Decoding a base64 encoded string to a Blob object.
js
decodeFile(input, options)Since
0.12.0
Arguments
input (string): A base64 encoded string.options (Object)type (string): An MIME type, such as'plain/text'.
Return
(Promise<Blob>)
Example
js
decodeFile('aGVsbG8gd29ybGQ=', { type: 'plain/text' })
.then(blob => {
console.log(blob)
// => Blob {size: 11, type: "plain/text"}
})encode
Encoding a utf8 string, byte array or Uint8Array to a base64 string.
js
encode(input)Since
0.3.0
Arguments
input (string | Array | Uint8Array)
Return
(string)
Example
js
// Input a string
encode('hello 你好')
// => 'aGVsbG8g5L2g5aW9'
// Input a byte array
const bytes = [104, 101, 108, 108, 111, 32, 228, 189, 160, 229, 165, 189]
encode(bytes)
// => 'aGVsbG8g5L2g5aW9'
// Input a Uint8Array
const uint8 = new Uint8Array(bytes)
encode(uint8)
// => 'aGVsbG8g5L2g5aW9'encodeFile
Encoding a Blob/File object to a string.
js
encodeFile(file)Since
0.12.0
Arguments
file (Blob)
Return
(Promise<string>)
Example
js
const blob = new Blob(['hello world'], { type: 'plain/text' })
encodeFile(blob)
.then((str) => {
console.log(str)
// => 'aGVsbG8gd29ybGQ='
})