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JQuery to check for duplicate ids in a DOM
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It gives false positive for forms which have input with name=id. javascript:(function () { var ids = {}; var found = false; $('[id]').each(function() { var id = this.getAttribute('id'); if (id && ids[id]) { found = true; ...
What do two question marks together mean in C#?
...te like the ternary (immediate-if) operator. See also ?? Operator - MSDN.
FormsAuth = formsAuth ?? new FormsAuthenticationWrapper();
expands to:
FormsAuth = formsAuth != null ? formsAuth : new FormsAuthenticationWrapper();
which further expands to:
if(formsAuth != null)
FormsAuth = formsA...
Is there a reason that we cannot iterate on “reverse Range” in ruby?
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When trying to add years to a form, I used: = f.select :model_year, (Time.zone.now.year + 1).downto(Time.zone.now.year - 100).to_a
– Eric Norcross
May 2 '18 at 0:14
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Wolfram's Rule 34 in XKCD [closed]
...scribed as a bitstring. Say it's rule 110 (my favorite). In binary, 110 is 01101110. The digit of least significance is zero. This means that if the cell and its neighbors match rule 0 above, it turns white/negative/0/false/whatever. The second least significant digit is one, so if the cell and its ...
Android soft keyboard covers EditText field
...scrolled. -->
</LinearLayout>
<ScrollView android:id="@+id/MainForm" >
<!-- Here add your edittexts or whatever will scroll. -->
</ScrollView>
I would typically have a LinearLayout inside the ScrollView, but that is up to you. Also, setting Scrollbar style to outsideIn...
Refresh image with a new one at the same url
...o get access to the file-last-modified time. Also, requires server-side information, so not suitable for a purely client-side-only solution to check for a refreshed image.
When to use: When you want to cache images, but may need to update them at the server end from time to time without changing ...
Windows path in Python
...e backslash and the next character in the literal were grouped together to form a single character in the final string. The full list of Python's escape sequences is here.
There are a variety of ways to deal with that:
Python will not process escape sequences in string literals prefixed with r or...
ActiveModel::ForbiddenAttributesError when creating new user
... enum preferred_phone: [:home_phone, :mobile_phone, :work_phone]
end
The form will pass say a radio selector as a string param. That's what happened in my case. The simple fix is to change enum to strings instead of symbols
enum preferred_phone: %w[home_phone mobile_phone work_phone]
# or more ve...
Why is `replace` property deprecated in AngularJS directives? [duplicate]
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There are issues with ways of coding forms and with SVG elements that needs replace. I agree however, it's harder to debug.
– LessQuesar
Jun 25 '15 at 1:15
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Suppress Scientific Notation in Numpy When Creating Array From Nested List
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answered Jun 1 '12 at 16:46
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