struct CSV::Row

Overview

A Row of a CSV::WithHeaders instance.

Defined in:

csv.cr

Instance Method Summary

Instance methods inherited from struct Struct

==(other : self) : Bool ==, hash : Int32 hash, inspect(io : IO) : Nil inspect, to_s(io) to_s

Instance methods inherited from struct Value

==(other) ==, dup dup

Instance methods inherited from class Object

!=(other) !=, !~(other) !~, ==(other) ==, ===(other)
===(other : YAML::Any)
===(other : JSON::Any) ===, =~(other) =~, class class, crystal_type_id crystal_type_id, dup dup, hash hash, inspect(io : IO)
inspect inspect, itself itself, not_nil! not_nil!, tap(&block) tap, to_json to_json, to_pretty_json(io : IO)
to_pretty_json to_pretty_json, to_s
to_s(io : IO) to_s, to_yaml
to_yaml(io : IO) to_yaml, try(&block) try

Class methods inherited from class Object

==(other : Class) ==, ===(other) ===, cast(other) : self cast, clone clone, dup dup, from_json(string_or_io, root : String) : self
from_json(string_or_io) : self from_json, from_yaml(string : String) : self from_yaml, hash hash, inspect(io) inspect, name : String name, to_s(io) to_s, |(other : U.class) |

Instance Method Detail

def [](header_pattern : Regex) : String #

Returns this row's value corresponding to the given header_pattern. Raises KeyError if no such header exists. Raises CSV::Error if headers were not requested.


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def [](column : Int) : String #

Returns this row's value at the given column index. A negative index counts from the end. Raises IndexError if no such column exists.


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def [](header : String) : String #

Returns the current row's value corresponding to the given header name. Raises KeyError if no such header exists. Raises CSV::Error if headers were not requested.


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def []?(header_pattern : Regex) : String | Nil #

Returns this row's value corresponding to the given header_pattern. Returns nil if no such header exists. Raises CSV::Error if headers were not requested.


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def []?(column : Int) : String | Nil #

Returns this row's value at the given column index. A negative index counts from the end. Returns nil if no such column exists.


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def []?(header : String) : String | Nil #

Returns this row's value corresponding to the given header name. Returns nil if no such header exists. Raises CSV::Error if headers were not requested.


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def size #

Returns the number of columns in this row, regardless of the number of headers (if requested).


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def to_a : Array(String) #

Converts this row to an Array.


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def to_h : Hash(String, String) #

Converts this row to a Hash.


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