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What is integer.to_f in Ruby?

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Grokking Modern System Design Interview for Engineers & Managers

Ace your System Design Interview and take your career to the next level. Learn to handle the design of applications like Netflix, Quora, Facebook, Uber, and many more in a 45-min interview. Learn the RESHADED framework for architecting web-scale applications by determining requirements, constraints, and assumptions before diving into a step-by-step design process.

Overview

The to_f method in Ruby is used to convert the value of an integer number into a float value.

Note: If the integer value does not fit as a float, an infinity value is returned.

Syntax

integer.to_f

Parameter

This method takes the integer value that we want to convert as a parameter value.

Return value

This method returns a float value of the given integer.

Code example

# create some integers
int1 = 2
int2 = 5
int3 = 50
int4 = -30**300
# convert to float
# and print results
puts int1.to_f # 2.0
puts int2.to_f # 5.0
puts int3.to_f # 50.0
puts int4.to_f # -Infinity
Convert the integer values to float values using the to_f method

Code explanation

  • Lines 2–5: We create some integer values.
  • Lines 9–12: We invoke the to_f method on the integer values. And then, we print the results to the console.

RELATED TAGS

integer
float
ruby
communitycreator

Grokking Modern System Design Interview for Engineers & Managers

Ace your System Design Interview and take your career to the next level. Learn to handle the design of applications like Netflix, Quora, Facebook, Uber, and many more in a 45-min interview. Learn the RESHADED framework for architecting web-scale applications by determining requirements, constraints, and assumptions before diving into a step-by-step design process.

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