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Twitter bootstrap dropdown goes outside the screen
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This answer does not actually fix the problem if user is using some smaller screen device -- it is going out of the left side in stead of right side (in fact that you just change the pull-left to the pull-right).
– ...
What is the difference between require() and library()?
...the best time to find out if the package needs to be installed (or perhaps doesn't even exist because it it spelled wrong). Getting error feedback early and at the relevant time will avoid possible headaches with tracking down why later code fails when it attempts to use library routines
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generate model using user:references vs user_id:integer
... 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 model named User to instantiate the specific user.
The second command also adds an...
What is the difference between decodeURIComponent and decodeURI?
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Another vital difference is that unescape does not handle multi-byte UTF-8 sequences whereas decodeURI[Component] does: decodeURIComponent("%C3%A9") == "é"; unescape("%C3%A9") == "é";
– chris
Jan 18 '18 at 16:00
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How to set default values in Rails?
... def self.up
change_column :people, :last_name, :type, :default => "Doe"
end
def self.down
# You can't currently remove default values in Rails
raise ActiveRecord::IrreversibleMigration, "Can't remove the default"
end
end
Because ActiveRecord autodiscovers your table and colu...
How to define “type disjunction” (union types)?
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@Kipton: That's sad. Does Miles Sabin's encoding also suffer from this problem?
– missingfaktor
Aug 14 '11 at 17:35
10
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How do you round a floating point number in Perl?
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Output of perldoc -q round
Does Perl have a round() function? What about ceil() and floor()?
Trig functions?
Remember that int() merely truncates toward 0. For rounding to a certain number of digits, sprintf() or printf() is usually the easiest
rout...
What is the “volatile” keyword used for?
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Wrong. Does not prevent caching. See my answer.
– doug65536
Oct 7 '16 at 2:59
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How does internationalization work in JavaScript?
...plementation, Intl.js, which will provide the API in environments where it doesn't already exist.
Determining the user's preferred language remains a problem since there's no specification for obtaining the current language. Each browser implements a method to obtain a language string, but this cou...
How to choose an AES encryption mode (CBC ECB CTR OCB CFB)?
...y requires a nonce, not an IV, and there is a distinct difference. A nonce does not drop security if people can guess the next one, an IV can cause this problem.
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