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In Django, how does one filter a QuerySet with dynamic field lookups?
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A simplified example:
In a Django survey app, I wanted an HTML select list showing registered users. But because we have 5000 registered users, I needed a way to filter that list based on query criteria (such as just people who co...
Is AngularJS just for single-page applications (SPAs)?
...e not.. that's like saying "Jquery is only for projects with animations".
If it fits your project, use it.
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How to click first link in list of items after upgrading to Capybara 2.0?
...:
first('.item').click_link('Agree')
or
first('.item > a').click
(if your default selector is :css)
Code in your question doesn't work as:
within ".item" do
first(:link, "Agree").click
end
is equivalent to:
find('.item').first(:link, "Agree").click
Capybara finds several .item's ...
Strangest language feature
...ts & semicolons syntax, it's not apparent at all that newlines are significant.
– Tamas Czinege
Jan 10 '10 at 15:27
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How to get number of rows using SqlDataReader in C#
...h the specialized count is that there's the potential for the count being different from the number of returned rows because somebody else has changed the data in a way that leads to the number of rows being returned.
– Pete OHanlon
Sep 5 '09 at 13:30
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ASP.NET MVC Conditional validation
...onResult> Validate(ValidationContext validationContext)
{
if (IsSenior && string.IsNullOrEmpty(Senior.Description))
yield return new ValidationResult("Description must be supplied.");
}
}
Read more at Introducing ASP.NET MVC 3 (Preview 1).
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How can I strip first X characters from string using sed?
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This doesn't seem to work, and if it does, can you explain how
– Alexander Mills
Jul 3 '19 at 3:29
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How can I determine the type of an HTML element in JavaScript?
... element name capitalized and without the angle brackets, which means that if you want to check if an element is an <div> element you could do it as follows:
elt.nodeName == "DIV"
While this would not give you the expected results:
elt.nodeName == "<div>"
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Why CancellationToken is separate from CancellationTokenSource?
... to encourage successful patterns and discourage anti-patterns without sacrificing performance.
If the door was left open for misbehaving APIs, then the usefulness of the cancellation design could quickly be eroded.
CancellationTokenSource == "cancellation trigger", plus generates linked listene...
What is the difference between old style and new style classes in Python?
What is the difference between old style and new style classes in Python? When should I use one or the other?
8 Answers
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