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Elixir Sigils is a relatively new computer programming language that is designed to be both functional and imperative. It was created in 2012 by José Valim, who was inspired by the functional programming language Erlang. Elixir Sigils is based on the Lisp programming language, and it is designed to be used for developing web applications. Here are some additional details about Elixir Sigils: * It is open-source software, and it is available under the MIT license. * It is supported by a large community of developers, and there are many resources available online for learning how to use it. * It is a fast and efficient language, and it is well-suited for developing complex applications. * It is a versatile language, and it can be used for a wide variety of tasks, including web development, system administration, and data science. Overall, Elixir Sigils is a powerful and versatile programming language that is well-suited for a wide variety of tasks. It is a relatively new language, but

Ask the right questions secure the right Elixir Sigils talent among an increasingly shrinking pool of talent.

First 20 minutes

General Elixir Sigils app knowledge and experience

The first 20 minutes of the interview should seek to understand the candidate's general background in Elixir Sigils application development, including their experience with various programming languages, databases, and their approach to designing scalable and maintainable systems.

What are Sigils in Elixir?

Sigils in Elixir are a way of working with text representation of complex data structures. They are used to create, manipulate, and transform structured data, such as lists, strings, regular expressions, and symbols.

How would you create a regular expression using Sigils in Elixir?

You can create a regular expression using Sigils with the syntax ~r/pattern/flags. For example, ~r/hello/ would create a regular expression to match the string 'hello'.

Describe the difference between ~s and ~S sigils in Elixir.

~s is used for creating strings, whereas ~S is used for creating strings without interpolation and escaping.

What are the different types of sigils available in Elixir?

Elixir provides eight built-in sigils: ~C, ~c, ~R, ~r, ~S, ~s, ~W, ~w. Each of these can be used in both lower case and upper case form, with different meanings.

How would you create a list of strings using Sigils in Elixir?

You can create a list of strings using the ~w sigil. For example, ~w(hello world) would create a list of strings ['hello', 'world'].

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What you’re looking for early on

Does the candidate have a deep understanding of Elixir Sigils?

Can the candidate demonstrate practical experience with Elixir Sigils?

Does the candidate show problem-solving skills?

Is the candidate able to communicate effectively about technical concepts?

Next 20 minutes

Specific Elixir Sigils development questions

The next 20 minutes of the interview should focus on the candidate's expertise with specific backend frameworks, their understanding of RESTful APIs, and their experience in handling data storage and retrieval efficiently.

How would you create a charlist using Sigils in Elixir?

You can create a charlist using the ~c sigil. For example, ~c(hello) would create a charlist 'hello'.

What are delimiters in the context of Elixir Sigils?

Delimiters are the characters that are used to enclose the content inside a sigil. They can be any non-alphanumeric, non-underscore ASCII character.

How would you create your own custom Sigil in Elixir?

You can define your own custom sigils in Elixir using the defmacro sigil_name/2 function. The first argument is the content inside the sigil, and the second argument is a list of options.

Describe the difference between ~w and ~W sigils in Elixir.

~w is used for creating a list of words, whereas ~W is used for creating a list of words without interpolation and escaping.

How would you use Sigils to create a multiline string in Elixir?

You can create a multiline string using the ~s sigil with triple double quotes as delimiters. For example, ~s"""hello world""" would create a multiline string 'hello\nworld'.

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At this point, a skilled Elixir Sigils engineer should demonstrate strong problem-solving abilities, proficiency in Elixir Sigils programming language, and knowledge of software development methodologies. Red flags include lack of hands-on experience, inability to articulate complex concepts, or unfamiliarity with standard coding practices.

Digging deeper

Code questions

These will help you see the candidate's real-world development capabilities with Elixir Sigils.

What does this simple Elixir Sigil code do?
IO.puts ~s{Hello, World!}
This code prints 'Hello, World!' to the console. The ~s{} is a sigil used for creating strings in Elixir.
What does the following Elixir Sigil syntax do?
IO.puts ~S{#{2 + 2}}
This code prints '#{2 + 2}' to the console. The ~S{} sigil is used for creating strings without interpolation and without escape sequences.
What will be the output of this Elixir Sigil code that manipulates a collection?
IO.inspect ~w{apple banana cherry}
This code prints ['apple', 'banana', 'cherry'] to the console. The ~w{} sigil is used for creating lists of words in Elixir.
What does this Elixir Sigil code do in relation to concurrency?
spawn(fn -> IO.puts(~s{Hello from the spawned process}) end)
This code spawns a new process and prints 'Hello from the spawned process' from that new process. The ~s{} sigil is used for creating strings.

Wrap-up questions

Final candidate for Elixir Sigils Developer role questions

The final few questions should evaluate the candidate's teamwork, communication, and problem-solving skills. Additionally, assess their knowledge of microservices architecture, serverless computing, and how they handle Elixir Sigils application deployments. Inquire about their experience in handling system failures and their approach to debugging and troubleshooting.

What would be the output of the following Elixir code: IO.puts ~s(hello world)?

The output would be a two-line string where the first line is 'hello' and the second line is 'world'.

How would you create a binary using Sigils in Elixir?

You can create a binary using the ~B sigil. For example, ~B(0110) would create a binary '0110'.

Describe the difference between ~r and ~R sigils in Elixir.

~r is used for creating regular expressions, whereas ~R is used for creating regular expressions without interpolation and escaping.

Elixir Sigils application related

Product Perfect's Elixir Sigils development capabilities

Beyond hiring for your Elixir Sigils engineering team, you may be in the market for additional help. Product Perfect provides seasoned expertise in Elixir Sigils projects, and can engage in multiple capacities.

Elixir Sigils Consultive assessments

Elixir Sigils Application Conversion Assessment Elixir Sigils Application Integration Assessment Elixir Sigils Data & Database Integration Assessment

Custom Elixir Sigils development projects

Custom Elixir Sigils App Conversion Elixir Sigils Custom App Development Process App UI Design for Elixir Sigils Facelifts

Hiring guide for Elixir Sigils Engineers

Elixir Sigils Developer Hiring Guide

What you’re looking for early on

The ideal back-end app developer

What you’re looking to see on the Elixir Sigils engineer at this point.

Elixir Sigils Consultive assessments

Custom Elixir Sigils development projects