undefined

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rails acts_as_rateable undefined. what could be wrong?

I\'m running rails 3 and have installed the acts_as_rateable gem by adding this \"gem \'acts_as_rateable\'\" to my gemfile. Everything installed correctly after bundle install and I have put \"acts_as[详细]

2023-02-22 14:13 分类：问答
Testing for undeclared variable

I\'m trying to parse an RSS feed using javascript.Sometimes a feed has multiple categories so I want to check if there is anything at item 2.If I don\'t check I get an error and when I use the followi[详细]

2023-02-22 13:01 分类：问答
Is there a standard function to check for null, undefined, or blank variables in JavaScript?

Is there a universal JavaScript functio开发者_开发技巧n that checks that a variable has a value and ensures that it\'s not undefined or null? I\'ve got this code, but I\'m not sure if it covers all ca[详细]

2023-02-21 23:45 分类：问答
Undefined height

I have two divisions (menu and content). content\'s height is undefined so that it can expand. I wanted the menu 开发者_StackOverflowto have the height of the \"expanded\" content.[详细]

2023-02-21 11:14 分类：问答
Undefined reference for function accepting references to user defined classes

I have a problem with a function that accepts as input references to two user defined objects. Here\'s what it looks like:[详细]

2023-02-20 16:27 分类：问答
jQuery: "A is undefined" error being thrown and JSLint says "jQuery(...) called incorrectly" what is wrong here?

I normally don\'t post this kind of thing but I am completely out of ideas and after hours of trying to fix this thing I simply don\'t know where to look for the error or what this error even means.[详细]

2023-02-19 20:24 分类：问答
jQuery returns "undefined" trying to find href

I\'m trying to wrap this into a function: //Entire Div Clickable function clickableDiv(){ win开发者_如何学Pythondow.location = $(this).find(\"a\").attr(\"href\");[详细]

2023-02-19 18:57 分类：问答
Set a variable if undefined in JavaScript

I know that I can test for a JavaScript variable and then define it if it is undefined, but is there not some way of saying[详细]

2023-02-19 12:07 分类：问答
Weird error with User edit view

When I click on this link in my index view: <%= link_to \"Edit Password\", edit_user_path(current_user) %>[详细]

2023-02-19 04:21 分类：问答
Undefined reference to 'Class::Class'

After fixing the previous problem (see my one other question that I have asked). I had declared more classes.[详细]

2023-02-19 03:50 分类：问答