irb

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Where does the variable "p" get it's value from in ruby if it's not defined explicitly?

Question: Where does p get it\'s value from below and why does it happen? Consider this irb session: me@somewhere:~$ irb[详细]

2023-01-04 23:56 分类：问答
How do I update all attributes of a class in IRB?

Objective: I would like to reset the array attribute of a开发者_运维知识库ll objects in a class to []. The way they started.[详细]

2023-01-03 09:00 分类：问答
Is it possible to titleize in IRB?

I tried this : User.find(1).update_attribute(\'first_name\', \'#{first.name.titleize}\') => /#{first.name.titleize}[详细]

2023-01-03 05:11 分类：问答
Can I use what I wrote on the shell (bash, cmd, irb, etc) in a script automatically?

The general idea is pretty simple, I want to make a script for a certain task, I do it in the shell (any shell), an开发者_如何学Pythond then I want to copy the commands I have used.[详细]

2023-01-03 03:43 分类：问答
Writing a simple conditional statement in IRB

I am looking up all Organizations with the url 开发者_如何学C\"http://\", and updating their attributes to \"\".[详细]

2023-01-02 21:01 分类：问答
IRB and large variables?

How can I print a large variable nicely in an irb prompt? I have a variable that contains many variables which are long and the printout becomes a mess to wade through. What if I just want the variabl[详细]

2023-01-01 21:48 分类：问答
Is there something like bpython for Ruby?

IRb is pretty plain compared to bpython, even when using wi开发者_StackOverflow中文版rble. Is there any ruby equivalent of bpython?You can extend irb to achieve all of bpython\'s functionality and mo[详细]

2023-01-01 15:18 分类：问答
Problems installing rdoc, irb, bluecloth, chronic on fedora 12

What do these errors mean? [root@localhost config]# 开发者_如何学Gogem install bluecloth Building native extensions.This could take a while...[详细]

2023-01-01 11:03 分类：问答
Rubygems Path Question

I am trying to run the following ruby code from IRB but am unable to require the gmail gem. require \'rubygems\'[详细]

2023-01-01 06:59 分类：问答
How do I compile irb from source on Ubuntu?

I would like to compile irb from source without any optimizations so I can get more information while stepping through (interpreter) code using gdb.I have successfully compiled ruby 1.9.1 without prob[详细]

2022-12-31 17:51 分类：问答