# Inject method

**URL:** <https://rubytalk.org/t/inject-method/40681>\
**Category:** ruby-talk\
**Created:** [17 September 2007 08:05 UTC](https://rubytalk.org/t/inject-method/40681 "2007-09-17T08:05:04Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Shai\_Rosenfeld1](https://avatars.discourse-cdn.com/v4/letter/s/977dab/32.png) [@Shai\_Rosenfeld1](https://rubytalk.org/u/Shai_Rosenfeld1)\
**Post date:** [17 September 2007 08:05 UTC](https://rubytalk.org/t/inject-method/40681/1 "2007-09-17T08:05:04Z")

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hi guys,

can someone explain (verbosely!) the inject method to me, or point me to  
some good reference with some good detailed examples? i find it pretty  
attractive and am trying to find excuses to use it somewhere as i heard  
it is a very powerful tool

thanks in advance

> **···**
>
> --  
> Posted via [http://www.ruby-forum.com/](http://www.ruby-forum.com/).

---

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**Author:** ![Pat\_Maddox1](https://avatars.discourse-cdn.com/v4/letter/p/ccd318/32.png) [@Pat\_Maddox1](https://rubytalk.org/u/Pat_Maddox1)\
**Post date:** [17 September 2007 08:09 UTC](https://rubytalk.org/t/inject-method/40681/2 "2007-09-17T08:09:54Z")

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[http://errtheblog.com/post/633](http://errtheblog.com/post/633)

> **···**
>
> On 9/17/07, Shai Rosenfeld \<shaiguitar@gmail.com\> wrote:
> 
> > hi guys,
> > 
> > can someone explain (verbosely!) the inject method to me, or point me to  
> > some good reference with some good detailed examples? i find it pretty  
> > attractive and am trying to find excuses to use it somewhere as i heard  
> > it is a very powerful tool
> > 
> > thanks in advance  
> > --  
> > Posted via [http://www.ruby-forum.com/\](http://www.ruby-forum.com/%5C).

---

<div class="post-metadata">

**Author:** ![Yusuf\_Celik](https://avatars.discourse-cdn.com/v4/letter/y/0ea827/32.png) [@Yusuf\_Celik](https://rubytalk.org/u/Yusuf_Celik)\
**Post date:** [17 September 2007 08:33 UTC](https://rubytalk.org/t/inject-method/40681/3 "2007-09-17T08:33:30Z")

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From command prompt if you type  
ri Enumerable#inject

will get what you are asking.

Regards  
Yusuf Celik

Shai Rosenfeld wrote:

> **···**
>
> > hi guys,
> > 
> > can someone explain (verbosely!) the inject method to me, or point me to  
> > some good reference with some good detailed examples? i find it pretty  
> > attractive and am trying to find excuses to use it somewhere as i heard  
> > it is a very powerful tool
> > 
> > thanks in advance
> 
> --  
> Posted via [http://www.ruby-forum.com/\](http://www.ruby-forum.com/%5C).