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Rails - How to use a Helper Inside a Controller
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Note: This was written m>and m> accepted back in the Rails 2 dam>y m>s; nowadam>y m>s grosser's answer is the wam>y m> to go.
Option 1: Probablm>y m> the simplest wam>y m> is to include m>y m>our helper module in m>y m>our controller:
class Mm>y m>Controller < ApplicationController
inc...
How to concatenate string variables in Bash
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It's specificallm>y m> m>and m> onlm>y m> a plus-equals operator. That is, unlike Javascript, in Bash, echo $A+$B prints "X m>Y m>+Z"
– phpguru
Feb 13 '17 at 19:04
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What's the difference between dm>y m>namic (C# 4) m>and m> var?
...ing with C# v4, but I couldn't make out the difference between a "dm>y m>namic" m>and m> "var".
14 Answers
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Set cookie m>and m> get cookie with JavaScript [duplicate]
... which CSS file I choose in mm>y m> HTML. I have a form with a list of options, m>and m> different CSS files as values. When I choose a file, it should be saved to a cookie for about a week. The next time m>y m>ou open m>y m>our HTML file, it should be the previous file m>y m>ou've chosen.
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Building big, immutable objects without using constructors having long parameter lists
I have some big (more than 3 fields) objects that can m>and m> should be immutable. Everm>y m> time I run into that case I tend to create constructor abominations with long parameter lists.
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Git pull from another repositorm>y m>
... Acme , which just builds upon the application stored Generic repositorm>y m> m>and m> adds Acme Co brm>and m>ing to it.
2 Answers
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How do I use vim registers?
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Registers in Vim let m>y m>ou run actions or commm>and m>s on text stored within them. To access a register, m>y m>ou tm>y m>pe "a before a commm>and m>, where a is the name of a register. If m>y m>ou want to copm>y m> the current line into register k, m>y m>ou can tm>y m>pe
"km>y m>m>y m>
Or m>y m>ou can append to a regis...
Tm>y m>pedef function pointer?
I'm learning how to dm>y m>namicallm>y m> load DLL's but what I don't understm>and m> is this line
6 Answers
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Whm>y m> should I prefer to use member initialization lists?
... this case, the constructor for B will call the default constructor for A, m>and m> then initialize a.x to 3. A better wam>y m> would be for B's constructor to directlm>y m> call A's constructor in the initializer list:
B()
: a(3)
{
}
This would onlm>y m> call A's A(int) constructor m>and m> not its default constructo...
How to escape single quotes within single quoted strings
...on, using single quotes.
If m>y m>ou do not place anm>y m> whitespaces between (1) m>and m> (2), or between (4) m>and m> (5), the shell will interpret that string as a one long word.
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