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Ruby custom error classes: inheritance of the message attribute
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raise already sets the message so you don't have to pass it to the constructor:
class MyCustomError < StandardError
attr_reader :object
def initialize(object)
@object = object
end
end
begin
raise MyCustomError.new("an object"), "a message"
rescu...
How do I shuffle an array in Swift?
How do I randomize or shuffle the elements within an array in Swift? For example, if my array consists of 52 playing cards, I want to shuffle the array in order to shuffle the deck.
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Node.js throws “btoa is not defined” error
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The 'btoa-atob' module does not export a programmatic interface, it only provides command line utilities.
If you need to convert to Base64 you could do so using Buffer:
console.log(Buffer.from('Hello World!').toString('base64'));
Reverse (assum...
HttpWebRequest using Basic authentication
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So how do you know for sure that UTF8 is the right encoding to use?
– Jeroen Wiert Pluimers
Sep 20 '14 at 7:15
2...
What is the best way to detect a mobile device?
...er|pocket|psp|series(4|6)0|symbian|treo|up\.(browser|link)|vodafone|wap|windows (ce|phone)|xda|xiino/i.test(navigator.userAgent)
|| /1207|6310|6590|3gso|4thp|50[1-6]i|770s|802s|a wa|abac|ac(er|oo|s\-)|ai(ko|rn)|al(av|ca|co)|amoi|an(ex|ny|yw)|aptu|ar(ch|go)|as(te|us)|attw|au(di|\-m|r |s )|avan|b...
How do you make an element “flash” in jQuery
...s there such a method in jQuery? I see fadeIn, fadeOut, and animate, but I don't see anything like "flash". Perhaps one of these three can be used with appropriate inputs?
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What is the most elegant way to remove a path from the $PATH variable in Bash?
Or more generally, how do I remove an item from a colon-separated list in a Bash environment variable?
33 Answers
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Is there a list of Pytz Timezones?
...ssible values for the timezone argument in the Python library pytz. How to do it?
7 Answers
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When to use Tornado, when to use Twisted / Cyclone / GEvent / other [closed]
...merce site, then you should probably go with Django. It will get your work done quick. You dont have to worry about too many technology choices. It provides everything thing you need from template engine to ORM. It will be slightly opinionated about the way you structure your app, which is good If y...
Search text in fields in every table of a MySQL database
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@KolobCanyon MySQL does provide an option to do it via SHOW TABLES FROM db_name LIKE 'pattern'
– vladkras
Nov 20 '16 at 9:52
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