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Annotation 6731810868492

Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits.

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Fish - Wikipedia
oups included Jawless fish †Armoured fish †Spiny sharks Cartilaginous fish Bony fish Ray-finned fish Lobe-finned fish Cladistically included but traditionally excluded taxa Tetrapods †Conodonts Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Around 99% of living fish species are ray-finned

Flashcard 6731812965644

Question

Fish are aquatic, craniate, gill-bearing animals that lack [...] with digits.

Answer

limbs

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Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits.

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Flashcard 6731814538508

Question

Fish are [...], craniate, gill-bearing animals that lack limbs with digits.

Answer

aquatic

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Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits.

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Flashcard 6731816111372

Question

Fish are aquatic, [...], gill-bearing animals that lack limbs with digits.

Answer

craniate

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Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits.

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Flashcard 6731817159948

Question

Fish are aquatic, craniate, [...]-bearing animals that lack limbs with digits.

Answer

gill

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Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits.

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Annotation 6731824762124

#elixir

In Elixir, the operator / always returns a float.

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Basic types - The Elixir programming language
arithmetic Open up iex and type the following expressions: iex> 1 + 2 3 iex> 5 * 5 25 iex> 10 / 2 5.0 Notice that 10 / 2 returned a float 5.0 instead of an integer 5. This is expected. In Elixir, the operator / always returns a float. If you want to do integer division or get the division remainder, you can invoke the div and rem functions: iex> div(10, 2) 5 iex> div 10, 2 5 iex> rem 10, 3 1 Notice that Elix

Flashcard 6731826334988

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#elixir

Question

In Elixir, the operator / always returns a [...].

Answer

float

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In Elixir, the operator / always returns a float.

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Annotation 6731828956428

#elixir

If you want to do integer division or get the division remainder, you can invoke the div and rem functions

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Basic types - The Elixir programming language
essions: iex> 1 + 2 3 iex> 5 * 5 25 iex> 10 / 2 5.0 Notice that 10 / 2 returned a float 5.0 instead of an integer 5. This is expected. In Elixir, the operator / always returns a float. If you want to do integer division or get the division remainder, you can invoke the div and rem functions: iex> div(10, 2) 5 iex> div 10, 2 5 iex> rem 10, 3 1 Notice that Elixir allows you to drop the parentheses when invoking named functions with at least one argument. This featur

Flashcard 6731830529292

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#elixir

Question

If you want to do integer division or get the division remainder, you can invoke the [...] and rem functions

Answer

div

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If you want to do integer division or get the division remainder, you can invoke the div and rem functions

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Flashcard 6731832102156

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#elixir

Question

If you want to do integer division or get the division remainder, you can invoke the div and [...] functions

Answer

rem

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If you want to do integer division or get the division remainder, you can invoke the div and rem functions

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Flashcard 6731833675020

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#elixir

Question

What is the shortcut notation for entering binary numbers in Elixir

Answer

0b1100111

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Basic types - The Elixir programming language
ast one argument. This feature gives a cleaner syntax when writing declarations and control-flow constructs. However, Elixir developers generally prefer to use parentheses. Elixir also supports shortcut notations for entering binary, octal, and hexadecimal numbers: iex> 0b1010 10 iex> 0o777 511 iex> 0x1F 31 Float numbers require a dot followed by at least one digit and also support e for scientific notatio

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#elixir

Question

What is the shortcut notation for entering hexadecimal numbers in Elixir

Answer

0x123456789abcdef

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Flashcard 6731839442188

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#elixir

Question

What is the shortcut notation for entering octal numbers in Elixir

Answer

0o1234567

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Annotation 6731844685068

#elixir

Floats in Elixir are 64-bit double precision.

You can invoke the round function to get the closest integer to a given float, or the trunc function to get the integer part of a float.

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Basic types - The Elixir programming language
ex> 0b1010 10 iex> 0o777 511 iex> 0x1F 31 Float numbers require a dot followed by at least one digit and also support e for scientific notation: iex> 1.0 1.0 iex> 1.0e-10 1.0e-10 Floats in Elixir are 64-bit double precision. You can invoke the round function to get the closest integer to a given float, or the trunc function to get the integer part of a float. iex> round(3.58) 4 iex> trunc(3.58) 3 Identifying functions and documentation Functions in Elixir are identified by both their name and their arity. The arity of a function descri

Flashcard 6731846520076

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#elixir

Question

Floats in Elixir are 64-bit double precision.

You can invoke the [...] function to get the closest integer to a given float, or the trunc function to get the integer part of a float.

Answer

round

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Floats in Elixir are 64-bit double precision. You can invoke the round function to get the closest integer to a given float, or the trunc function to get the integer part of a float.

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Flashcard 6731848092940

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#elixir

Question

Floats in Elixir are [...]-bit double precision.

You can invoke the round function to get the closest integer to a given float, or the trunc function to get the integer part of a float.

Answer

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Floats in Elixir are 64-bit double precision. You can invoke the round function to get the closest integer to a given float, or the trunc function to get the integer part of a float.

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Flashcard 6731849665804

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#elixir

Question

Floats in Elixir are 64-bit double precision.

You can invoke the round function to get the closest integer to a given float, or the [...] function to get the integer part of a float.

Answer

trunc

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Floats in Elixir are 64-bit double precision. You can invoke the round function to get the closest integer to a given float, or the trunc function to get the integer part of a float.

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Annotation 6731852287244

#elixir

Functions in Elixir are identified by both their name and their arity.

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Basic types - The Elixir programming language
nction to get the closest integer to a given float, or the trunc function to get the integer part of a float. iex> round(3.58) 4 iex> trunc(3.58) 3 Identifying functions and documentation Functions in Elixir are identified by both their name and their arity. The arity of a function describes the number of arguments that the function takes. From this point on we will use both the function name and its arity to describe functions throughout t

Flashcard 6731853860108

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#elixir

Question

Functions in Elixir are identified by both their [...] and their arity.

Answer

name

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Functions in Elixir are identified by both their name and their arity.

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#elixir

Question

Functions in Elixir are identified by both their name and their [...].

Answer

arity

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Functions in Elixir are identified by both their name and their arity.

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Annotation 6731857530124

#elixir

The arity of a function describes the number of arguments that the function takes.

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Basic types - The Elixir programming language
on to get the integer part of a float. iex> round(3.58) 4 iex> trunc(3.58) 3 Identifying functions and documentation Functions in Elixir are identified by both their name and their arity. The arity of a function describes the number of arguments that the function takes. From this point on we will use both the function name and its arity to describe functions throughout the documentation. trunc/1 identifies the function which is named trunc and takes 1

Flashcard 6731859102988

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#elixir

Question

The arity of a function describes [...].

Answer

the number of arguments that the function takes

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The arity of a function describes the number of arguments that the function takes.

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Annotation 6731861200140

#elixir

trunc/1 identifies the function which is named trunc and takes 1 argument

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Basic types - The Elixir programming language
of a function describes the number of arguments that the function takes. From this point on we will use both the function name and its arity to describe functions throughout the documentation. trunc/1 identifies the function which is named trunc and takes 1 argument, whereas trunc/2 identifies a different (nonexistent) function with the same name but with an arity of 2. We can also use this syntax to access documentation. The Elixir shell defines t

Flashcard 6731862773004

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#elixir

Question

trunc/1 identifies the function which [...]

Answer

is named trunc and takes 1 argument

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trunc/1 identifies the function which is named trunc and takes 1 argument

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Annotation 6731864870156

#elixir

The Elixir shell defines the h function, which you can use to access documentation for any function. For example, typing h trunc/1 is going to print the documentation for the trunc/1 function:

 iex > h trunc / 1 def trunc () Returns the integer part of number .

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Basic types - The Elixir programming language
s named trunc and takes 1 argument, whereas trunc/2 identifies a different (nonexistent) function with the same name but with an arity of 2. We can also use this syntax to access documentation. The Elixir shell defines the h function, which you can use to access documentation for any function. For example, typing h trunc/1 is going to print the documentation for the trunc/1 function: iex> h trunc/1 def trunc() Returns the integer part of number. h trunc/1 works because it is defined in the Kernel module. All functions in the Kernel module are automatically imported into our namespace. Most often you will also include the module

Flashcard 6731866443020

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#elixir

Question

How do you access the documentation for any function?

Answer

With the h function. For example, typing h trunc/1 is going to print the documentation for the trunc/1 function.

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The Elixir shell defines the h function, which you can use to access documentation for any function. For example, typing h trunc/1 is going to print the documentation for the trunc/1 function: iex > h trunc / 1 def trunc () Returns the integer part of number .

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Annotation 6731869326604

#elixir

Elixir provides a bunch of predicate functions to check for a value type. For example, the is_boolean/1 function can be used to check if a value is a boolean or not:

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Basic types - The Elixir programming language
splays the documentation for IEx.Helpers, which is where h and other functionality is defined. Booleans Elixir supports true and false as booleans: iex> true true iex> true == false false Elixir provides a bunch of predicate functions to check for a value type. For example, the is_boolean/1 function can be used to check if a value is a boolean or not: iex> is_boolean(true) true iex> is_boolean(1) false You can also use is_integer/1, is_float/1 or is_number/1 to check, respectively, if an argument is an integer, a float, or eith

Flashcard 6731870899468

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#elixir

Question

Which function can be used to check if a value is a boolean or not?

Answer

is_boolean/1

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Elixir provides a bunch of predicate functions to check for a value type. For example, the is_boolean/1 function can be used to check if a value is a boolean or not:

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Annotation 6731873783052

#elixir

You can also use is_integer/1, is_float/1 or is_number/1 to check, respectively, if an argument is an integer, a float, or either.

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Basic types - The Elixir programming language
dicate functions to check for a value type. For example, the is_boolean/1 function can be used to check if a value is a boolean or not: iex> is_boolean(true) true iex> is_boolean(1) false You can also use is_integer/1, is_float/1 or is_number/1 to check, respectively, if an argument is an integer, a float, or either. Atoms An atom is a constant whose value is its own name. Some other languages call these symbols. They are often useful to enumerate over distinct values, such as: iex> :apple :apple

Flashcard 6731875355916

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#elixir

Question

You can also use [...] to check, respectively, if an argument is an integer, a float, or either.

Answer

is_integer/1, is_float/1 or is_number/1

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You can also use is_integer/1, is_float/1 or is_number/1 to check, respectively, if an argument is an integer, a float, or either.

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Annotation 6731877453068

#elixir

Strings in Elixir are delimited by double quotes, and they are encoded in UTF-8:

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Basic types - The Elixir programming language
or the atoms false, true and nil. Finally, Elixir has a construct called aliases which we will explore later. Aliases start in upper case and are also atoms: iex> is_atom(Hello) true Strings Strings in Elixir are delimited by double quotes, and they are encoded in UTF-8: iex> "hellö" "hellö" Note: if you are running on Windows, there is a chance your terminal does not use UTF-8 by default. You can change the encoding of your current session by runnin

Flashcard 6731879550220

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#elixir

Question

Strings in Elixir are delimited by double quotes, and they are encoded in [...]:

Answer

UTF-8

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Strings in Elixir are delimited by double quotes, and they are encoded in UTF-8:

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Annotation 6731881647372

#elixir

Elixir also supports string interpolation:

 iex > string = :world iex > "hellö #{ string } " "hellö world"

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Basic types - The Elixir programming language
ote: if you are running on Windows, there is a chance your terminal does not use UTF-8 by default. You can change the encoding of your current session by running chcp 65001 before entering IEx. Elixir also supports string interpolation: iex> string = :world iex> "hellö #{string}" "hellö world" Strings can have line breaks in them. You can introduce them using escape sequences: iex> "hello ...> world" "hello\nworld" iex> "hello\nworld" "hello\nworld" You can print a s

Annotation 6731883220236

#elixir

You can print a string using the IO.puts/1 function

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Basic types - The Elixir programming language
#{string}" "hellö world" Strings can have line breaks in them. You can introduce them using escape sequences: iex> "hello ...> world" "hello\nworld" iex> "hello\nworld" "hello\nworld" You can print a string using the IO.puts/1 function from the IO module: iex> IO.puts("hello\nworld") hello world :ok Notice that the IO.puts/1 function returns the atom :ok after printing. Strings in Elixir are represented internally

Annotation 6731884793100

#elixir

Strings in Elixir are represented internally by contiguous sequences of bytes known as binaries:

 iex > is_binary ( "hellö" ) true

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Basic types - The Elixir programming language
" You can print a string using the IO.puts/1 function from the IO module: iex> IO.puts("hello\nworld") hello world :ok Notice that the IO.puts/1 function returns the atom :ok after printing. Strings in Elixir are represented internally by contiguous sequences of bytes known as binaries: iex> is_binary("hellö") true We can also get the number of bytes in a string: iex> byte_size("hellö") 6 Notice that the number of bytes in that string is 6, even though it has 5 graphemes. That’s because the gra

Annotation 6731888200972

#elixir

We can also get the number of bytes in a string:

 iex > byte_size ( "hellö" ) 6

Notice that the number of bytes in that string is 6, even though it has 5 graphemes. That’s because the grapheme “ö” takes 2 bytes to be represented in UTF-8. We can get the actual length of the string, based on the number of graphemes, by using the String.length/1 function:

 iex > String . length ( "hellö" ) 5

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Basic types - The Elixir programming language
that the IO.puts/1 function returns the atom :ok after printing. Strings in Elixir are represented internally by contiguous sequences of bytes known as binaries: iex> is_binary("hellö") true We can also get the number of bytes in a string: iex> byte_size("hellö") 6 Notice that the number of bytes in that string is 6, even though it has 5 graphemes. That’s because the grapheme “ö” takes 2 bytes to be represented in UTF-8. We can get the actual length of the string, based on the number of graphemes, by using the String.length/1 function: iex> String.length("hellö") 5 The String module contains a bunch of functions that operate on strings as defined in the Unicode standard: iex> String.upcase("hellö") "HELLÖ" Anonymous functions Elixir also provid

Annotation 6731889773836

#elixir

We can invoke anonymous functions by passing arguments to it. Note that a dot (.) between the variable and parentheses is required to invoke an anonymous function. The dot ensures there is no ambiguity between calling the anonymous function matched to a variable add and a named function add/2

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Basic types - The Elixir programming language
nd returns the result of a + b. The arguments are always on the left-hand side of -> and the code to be executed on the right-hand side. The anonymous function is stored in the variable add. We can invoke anonymous functions by passing arguments to it. Note that a dot (.) between the variable and parentheses is required to invoke an anonymous function. The dot ensures there is no ambiguity between calling the anonymous function matched to a variable add and a named function add/2. We will write our own named functions when dealing with Modules and Functions. For now, just remember that Elixir makes a clear distinction between anonymous functions and named functi

Flashcard 6731891346700

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#elixir

Question

We can invoke anonymous functions by passing arguments to it. Note that a dot (.) between the variable and parentheses is required to invoke an anonymous function. Why is that?

Answer

The dot ensures there is no ambiguity between calling the anonymous function matched to a variable add and a named function add/2.

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We can invoke anonymous functions by passing arguments to it. Note that a dot (.) between the variable and parentheses is required to invoke an anonymous function. The dot ensures there is no ambiguity between calling the anonymous function matched to a variable add and a named function add/2

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Annotation 6731893181708

#elixir

We can check if a function is of any given arity by using is_function/2:

 # check if add is a function that expects exactly 2 arguments iex > is_function ( add , 2 ) true # check if add is a function that expects exactly 1 argument iex > is_function ( add , 1 ) false

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Basic types - The Elixir programming language
, just remember that Elixir makes a clear distinction between anonymous functions and named functions. Anonymous functions in Elixir are also identified by the number of arguments they receive. We can check if a function is of any given arity by using is_function/2: # check if add is a function that expects exactly 2 arguments iex> is_function(add, 2) true # check if add is a function that expects exactly 1 argument iex> is_function(add, 1) false Finally, anonymous functions can also access variables that are in scope when the function is defined. This is typically refered to as closures, as they close over their scope. Let’s de

Flashcard 6731896327436

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#elixir

Question

We can check if a function is of any given arity by using [...]:

Answer

is_function/2

 # check if add is a function that expects exactly 2 arguments iex > is_function ( add , 2 ) true # check if add is a function that expects exactly 1 argument iex > is_function ( add , 1 ) false

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We can check if a function is of any given arity by using is_function/2: # check if add is a function that expects exactly 2 arguments iex > is_function ( add , 2 ) true # check if add is a function that expects exactly 1 argument iex > is_function (

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