Integer functions

abs

Returns the absolute (non-negative) value of the integer.

TemplateOutput

<%= -5.abs %>

5

to_string

Converts the integer to a string. to_s is an alias for to_string.

TemplateOutput

<%= 5.to_string + " times" %>

5 times

to_float

Converts the integer to a floating point number. to_f is an alias for to_float.

TemplateOutput

<%= 5.to_float * 2.5 %>

12.5

times

Creates a list of integers, starting at 0 and ending with the integer. This function is commonly used to run a for loop, for example:

TemplateOutput

<% for i in 3.times %>
    <%= i %>.
<% end %>

1.
2.
3.

clamp_zero

Clamps the integer to 0, i.e. negative values become 0.

TemplateOutput

<%= -25.clamp_zero %>

0

clamp_one

Clamps the integer to 1, i.e. all values less than 1 become 1.

TemplateOutput

<%= 0.clamp_one %>

1

replace

Replaces matching integer(s) in the number. sub is an alias for replace.

TemplateOutput

<%= 15345.replace(5, 6) %>

16346