What do you mean by Ascii85 and base85?

What do you mean by Ascii85 and base85?

Ascii85, also called Base85, is a form of binary-to-text encoding used to communicate arbitrary binary data over channels that were designed to carry only English language human-readable text.

How are anonymous functions used in Elixir shorthand?

Using anonymous functions is such a common practice in Elixir there is shorthand for doing so: As you probably already guessed, in the shorthand version our parameters are available to us as &1, &2, &3, and so on. Pattern matching isn’t limited to just variables in Elixir, it can be applied to function signatures as we will see in this section.

How to check the type of variable in Elixir?

There’s no direct way to get the type of a variable in Elixir/Erlang. You usually want to know the type of a variable in order to act accordingly; you can use the is_* functions in order to act based on the type of a variable. Learn You Some Erlang has a nice chapter about typing in Erlang (and thus in Elixir).

Why does elixir match the arguments of a function?

The reason for this behavior is that Elixir pattern-matches the arguments that a function is called with against the arity the function is defined with. Let’s think about how the data looks when it arrives to Greeter1.hello/1:

What’s the difference between Base64 and base85 decoder?

Base85 encoder/decoder written in native javascript. Where base64 adds approximately 1/3, base85 only adds about 1/4. Of course there’s a tradeoff. The Base85 alphabet includes characters that might not be as friendly as the base64 alphabet.

Are there printable characters in the base85 alphabet?

The Base85 alphabet includes characters that might not be as friendly as the base64 alphabet. While it’s still only printable characters, the Ascii85 specification contains quotes ( ‘ and “) which needs escaping in many programming languages, and the ZeroMQ specification contains < and > which need escaping in most (all?) SGML languages.

How many bytes do you need for IPv6 decoding?

IPv6 encoding should only be used for encoding IPv6 addresses. When using IPv6, input for encoding must always be 16 bytes, and input for decoding must always be 20 bytes. ZeroMQ’s version (z85) require according to the specification) string input to be divisible by 5, and binary input to be divisible by 4.