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Rails Model, View, Controller, and Helper: what goes where?
...rols the view but not the logic. The Controller should concern itself with selecting the proper view and delegate more complex stuff to the domain model (Model) or the business layer.
Domain Driven Design has a concept of Services which is a place you stick logic which needs to orchestrate a number...
git: How to ignore all present untracked files?
...le; No. -c marks the beginning of a list of column numbers to cut. And 4- selects the line from column 4 to the end, which cuts columns 1-3. So your cut command actually removes the first 3 characters of each line. If you removed 4 characters from a git status line such as the one for this file he...
event.preventDefault() vs. return false
... event handlers for parent elements). Default = browser code (links, text selection, etc.)
– Bob Stein
Jul 28 '13 at 14:49
5
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How do I install ASP.NET MVC 5 in Visual Studio 2012?
...web-tools-20131-for-visual-studio-2012
Dependency:
.NET 4.5
You need to select this version of the framework when creating a new project in order to view the MVC 5 project templates.
Included:
MVC5
Entity Framework 6
Web API 2
Bootstrap
Razor
Nuget 2.7
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List distinct values in a vector in R
...
You can also use the sqldf package in R.
Z <- sqldf('SELECT DISTINCT tablename.columnname FROM tablename ')
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Creating a segue programmatically
...s, call that method when the appropriate button is clicked or table row is selected or whatever.
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OS X Framework Library not loaded: 'Image not found'
...dded Content section in the General tab of your app target.
Make sure you select the 'Embed & Sign' option.
[Xcode v6 -> Xcode v10]
The only thing to do is to add the framework to the Embedded binaries section in the General tab of your app target.
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UITextField text change event
...ntrol.
In Objective-C:
[textField addTarget:self
action:@selector(textFieldDidChange:)
forControlEvents:UIControlEventEditingChanged];
In Swift:
textField.addTarget(self, action: #selector(textFieldDidChange), for: .editingChanged)
Then in the textFieldDidChange method...
How to make button look like a link?
... padding: 0;
border: none;
cursor: pointer;
-moz-user-select: text;
/* override all your button styles here if there are any others */
}
button.link span {
text-decoration: underline;
}
button.link:hover span,
button.link:focus span {
color: black;
}
<...
jQuery callback on image load (even when the image is cached)
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#img is an ID not an element selector :) Also this.src works, no need to use jQuery where it isn't needed :) But creating another image seems like overkill in either case IMO.
– Nick Craver♦
Oct 6 '10 at 21:57
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