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CodeIgniter: Create new helper?

I need to loop lot of arrays in different ways and display it in a page. The arrays are generated by a module class. I know that its better not to include functions on 'views' and I want to know where to insert the functions file. ...
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What's this =! operator? [duplicate]

...at's two operators, = and !, not one. It might be an obfuscated way of writing a = !b; if (a) { // whatever } setting a to the logical inverse of b, and testing whether the result is true (or, equivalently, whether b was false). Or it might be a mistyping of a != b. ...
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How can I pass a constant value for 1 binding in multi-binding?

I have a multi-binding like 4 Answers 4 ...
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Mutex example / tutorial? [closed]

I'm new to multithreading, and was trying to understand how mutexes work. Did a lot of Googling but it still left some doubts of how it works because I created my own program in which locking didn't work. ...
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What is “git remote add …” and “git push origin master”?

Quite often, Git and Rails looks like magic... such as in the first chapter of Rails 3 Tutorial book , it talks about Git: ...
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How and why does 'a'['toUpperCase']() in JavaScript work?

JavaScript keeps surprising me and this is another instance. I just came across some code which I did not understood at first. So I debugged it and came to this finding: ...
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Why is it important to override GetHashCode when Equals method is overridden?

Given the following class 14 Answers 14 ...
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Specify multiple attribute selectors in CSS

What is the syntax for doing something like: 5 Answers 5 ...
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Is there an exponent operator in C#?

... Keep in mind the performance penalty if using Math.Pow for squaring: stackoverflow.com/questions/936541/… – Justas Aug 28 '17 at 21:11 ...
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How to create a new (and empty!) “root” branch?

I would like to define a new "root" branch in this git repository. By "root" branch I mean a branch that is entirely independent of all the other branches in the repository 1 . ...