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Best Practice: Access form elements by HTML id or name attribute?

As any seasoned JavaScript developer knows, there are many (too many) ways to do the same thing. For example, say you have a text field as follows: ...
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How do I avoid capturing self in blocks when implementing an API?

I have a working app and I'm working on converting it to ARC in Xcode 4.2. One of the pre-check warnings involves capturing self strongly in a block leading to a retain cycle. I've made a simple code sample to illustrate the issue. I believe I understand what this means but I'm not sure the "corre...
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What are major differences between C# and Java?

I just want to clarify one thing. This is not a question on which one is better, that part I leave to someone else to discuss. I don't care about it. I've been asked this question on my job interview and I thought it might be useful to learn a bit more. ...
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What are the most-used vim commands/keypresses?

I'm a Ruby programming trying to switch from Textmate to MacVim, and I'm having trouble wading through the gargantuan lists of things you can do in VIM and all of the keypresses for them. I'm tired of hearing "You can use 'I' for inserting text, or 'a' for appending text after the character, or 'A' ...
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Does every Core Data Relationship have to have an Inverse?

Let's say I have two Entity classes: SocialApp and SocialAppType 8 Answers 8 ...
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Why is null an object and what's the difference between null and undefined?

Why is null considered an object in JavaScript? 21 Answers 21 ...
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Should “node_modules” folder be included in the git repository

I'm wondering if we should be tracking node_modules in our repo or doing an npm install when checking out the code? 9 Answe...
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How can you dynamically create variables via a while loop? [duplicate]

I want to create variables dynamically via a while loop in Python. Does anyone have any creative means of doing this? 8 Ans...
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How to override and extend basic Django admin templates?

How do I override an admin template (e.g. admin/index.html) while at the same time extending it (see https://docs.djangoproject.com/en/dev/ref/contrib/admin/#overriding-vs-replacing-an-admin-template )? ...
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How do you match only valid roman numerals with a regular expression?

Thinking about my other problem , i decided I can't even create a regular expression that will match roman numerals (let alone a context-free grammar that will generate them) ...