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What does the Q_OBJECT macro do? Why do all Qt objects need this macro?
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Unslander Monica
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answered Sep 2 '09 at 16:23
Stu MackellarSt...
How to select where ID in Array Rails ActiveRecord without exception
When I have array of ids, like
6 Answers
6
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“Register” an .exe so you can run it from any command line in Windows
How can you make a .exe file accessible from any location in the Windows command window? Is there some registry entry that has to be entered?
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Check if page gets reloaded or refreshed in JavaScript
I want to check when someone tries to refresh a page.
10 Answers
10
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How do I create a new GitHub repo from a branch in an existing repo?
I have master and new-project branches. And now I'd like to create a brand new repo with its master based on the new-project branch.
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What are the implications of using “!important” in CSS? [duplicate]
I've been working on a website for a few months, and a lot of times when I've been trying to edit something, I have to use !important , for example :
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Declare and initialize a Dictionary in Typescript
... missing in type '{ firstName:
string; }'.
Apparently this doesn't work when passing the initial data at declaration.
I guess this is a bug in TypeScript, so you should raise one at the project site.
You can make use of the typed dictionary by splitting your example up in declaration and initi...
Question mark and colon in JavaScript
...ator).
It has the form of: condition ? value-if-true : value-if-false
Think of the ? as "then" and : as "else".
Your code is equivalent to
if (max != 0)
hsb.s = 255 * delta / max;
else
hsb.s = 0;
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Rails Object to hash
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If you are looking for only attributes, then you can get them by:
@post.attributes
Note that this calls ActiveModel::AttributeSet.to_hash every time you invoke it, so if you need to access the hash multiple times you should cache it in a ...
What is the difference between public, private, and protected?
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You use:
public scope to make that property/method available from anywhere, other classes and instances of the object.
private scope when you want your property/method to be visible in its own class only.
protected scope when you want to make your pr...