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generate model using user:references vs user_id:integer
..._id: integer, created_at: datetime, updated_at: datetime)
The second command adds a belongs_to :user relationship in your Micropost model whereas the first does not. When this relationship is specified, ActiveRecord will assume that the foreign key is kept in the user_id column and it will use a ...
How to find first element of array matching a boolean condition in JavaScript?
...for arrays; this stops enumerating the array once it finds the first match and returns the value.
const result = someArray.find(isNotNullNorUndefined);
Old answer:
I have to post an answer to stop these filter suggestions :-)
since there are so many functional-style array methods in ECMAScript, p...
FontAwesome icons not showing. Why?
Recently I've been developing this website and I'm trying to put a font awesome icons in it, so it's scalable.
24 Answers
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Testing if object is of generic type in C#
...of inheritance. If, along the way, you have a base with both a base class and the interface you're looking for, this goes down the class path only.
– Groxx
Mar 18 '11 at 23:41
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Oracle “Partition By” Keyword
Can someone please explain what the partition by keyword does and give a simple example of it in action, as well as why one would want to use it? I have a SQL query written by someone else and I'm trying to figure out what it does.
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Observer Design Pattern vs “Listeners”
...ous toolkits. Is there a difference between the concepts, or are Listeners and Observers really the same thing.
3 Answers
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Inserting HTML into a div
...mple, I have a case in which server technologies (php etc) are disallowed, and I want to re-use about 20 lines of html inside the same page.
– Jennifer Michelle
Jan 30 '14 at 4:47
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How do I set the maximum line length in PyCharm?
I am using PyCharm on Windows and want to change the settings to limit the maximum line length to 79 characters, as opposed to the default limit of 120 characters.
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Multi-line commands in GHCi
I am having problem in entering multi-line commands in ghci.
5 Answers
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How can I exclude some folders from my Eclipse project?
I'm adding an eclipse project to our existing code-base, and I'd like to know if there is a way to exclude some directories from being picked up by eclipse at all? The reason is that we have a huge "third-party" directory in our repository that cannot be present in the project for the pair-program...