Proc and lambdas

ruby-talk
1

I am confusing about Proc and lambdas.
I need to just find out the longest word in the given array using Proc
or lambda.

Can any one post the code,?

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2

Why is that a requirement?

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On 09/21/2012 11:38 AM, Venkat Ch wrote:

I am confusing about Proc and lambdas.
I need to just find out the longest word in the given array using Proc
or lambda.

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Lars Haugseth

3

Hi,

This is not a homework forum. Apart from that, your description is far
too vague to make anything useful out of it. Procs are just a tool, you
can use them in all kinds of ways. So saying "find the word using a
proc" is like saying "sort an array using methods".

The usual solution to "get the smallest/biggest value" is to use the
method Enumerable#max_by (or min_by):

http://ruby-doc.org/core-1.9.3/Enumerable.html#method-i-max_by

words = [
  'a',
  'abc',
  'abcde',
  'ab'
]
puts words.max_by &:length

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4

Suggested reading is on Blocks, Procs and Lambdas: http://bit.ly/NGQTjT

Have a nice day,

Brandon Weaver

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On Fri, Sep 21, 2012 at 7:16 AM, Jan E. <lists@ruby-forum.com> wrote:

Hi,

This is not a homework forum. Apart from that, your description is far
too vague to make anything useful out of it. Procs are just a tool, you
can use them in all kinds of ways. So saying "find the word using a
proc" is like saying "sort an array using methods".

The usual solution to "get the smallest/biggest value" is to use the
method Enumerable#max_by (or min_by):

Module: Enumerable (Ruby 1.9.3)

words = [
  'a',
  'abc',
  'abcde',
  'ab'
]
puts words.max_by &:length

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