Tatara::String

About

Tatara::String is String class like static type programming lang.

Tatara::String can set val for String.

@s = Tatara::String.new
@s.val = "hoge"
# => Set "hoge"
@s.val = "fuga"
# => Set "fuga"

But, can not set Integer & Float value.

@s = Tatara::String.new
@s.val = 42
# => Error!
@s.val = 4.2
# => Error!

Methods

Tatara::String#new

Create new Tatara::String instance. And init value is ""

@s = Tatara::String.new

Tatara::String#value

return Tatara::String instance value.

@s = Tatara::String.new
puts @s.value
# => Show ""

Tatara::String#val

return Tatara::String instance value.

@s = Tatara::String.new
puts @s.val
# => Show ""

Tatara::String#value=

Set instance value for Tatara::String.

@s = Tatara::String.new
@s.value = "42"
# => Set "42"

Tatara::String#val=

Set instance value for Tatara::String.

@s = Tatara::String.new
@s.val = "42"
# => Set "42"

Tatara::String#value+=

Add and Set instance value for Tatara::String.

@s = Tatara::String.new
@s.value = "21"
@s.value += "21"
# => Value is "2121"
@s.value += "21"
# => Value is "212121"

Tatara::String#val+=

Add and Set instance value for Tatara::String.

@s = Tatara::String.new
@s.val = "21"
@s.val += "21"
# => Value is "2121"
@s.val += "21"
# => Value is "212121"

Tatara::String#value==

Check instance value, and return Boolean.

@s = Tatara::String.new
@s.value = "42"
puts @s.value == "42"
# => true
puts @s.value == "62"
# => false

Tatara::String#val==

Check instance value, and return Boolean.

@s = Tatara::String.new
@s.val = "42"
puts @s.val == "42"
# => true
puts @s.val == "62"
# => false

Tatara::String#equal?

Check instance value, and return Boolean.

@s = Tatara::String.new
@s.val = "42"
puts @s.equal? "42"
# => true
puts @s.equal? "62"
# => false

Tatara::String#to_i

Convert to Integer for instance value.

@s = Tatara::String.new
@s.val = "42"
@s.to_i
# => Conver to Integer.

Tatara::String#to_f

Convert to Float for instance value.

@s = Tatara::String.new
@s.val = "4.2"
@s.to_f
# => Convert to Float.

Tatara::String#clear

Clear instance value.

@s = Tatara::String.new
@s.val = "42"
# => Set "42"
@s.clear
# => Clear instance value. Value is ""

Tatara::String#operator«

Set instance value for Tatara::String.

@s = Tatara::String.new << "42"
puts @s.val
# => "42"
@s = @s << "50"
puts @s.val
# => "50"

Tatara::String#[]

Access by Index.

@s = Tatara::String.new
@s <<= "hello"
puts @s[0]
# => "h"
puts @s[1]
# => "e"

Tatara::String#slice

Slice Tatara::String value.

@s = Tatara::String.new
@s <<= "hello"
puts @s.slice(0, 3)
# => "hel"
puts @s.slice(0, 4)
# => "hell"

Tatara::String#slice!

Slice Tatara::String value, and Reset sliced value.

@s = Tatara::String.new
@s <<= "hello"
@s.slice!(0, 3)
puts @s.val
# => "hel"