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Blank HTML SELECT without blank item in dropdown list
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Just use disabled and/or hidden attributes:
<option selected disabled hidden style='display: none' value=''></option>
selected makes this option the default one.
disabled makes this option unclickable.
style='display: none' makes this ...
jQuery get value of selected radio button
...adio button from a radio group. Every radio button in the group share same id.
27 Answers
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pandas GroupBy columns with NaN (missing) values
...lna(-1).groupby('b').sum()
Out[12]:
a
b
-1 2
4 1
6 3
That said, this feels pretty awful hack... perhaps there should be an option to include NaN in groupby (see this github issue - which uses the same placeholder hack).
However, as described in another answer, from pandas 1.1 you have...
jquery's append not working with svg element?
...s may fail.
HTML5 promises to let you use <svg> without an xmlns inside a plain HTML (text/html) document in the future. But this is just a parser hack(**), the SVG content will still be SVGElements in the SVG namespace, and not HTMLElements, so you'll not be able to use innerHTML even though...
How to Programmatically Add Views to Views
... following code in your onCreate() function assuming your LinearLayout has id R.id.main:
LinearLayout myLayout = findViewById(R.id.main);
Button myButton = new Button(this);
myButton.setLayoutParams(new LinearLayout.LayoutParams(
LinearLayout.LayoutParams.MATCH...
Identity increment is jumping in SQL Server database
...n one of my tables Fee in column "ReceiptNo" in SQL Server 2012 database identity increment suddenly started jumping to 100s instead of 1 depending on the following two things.
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XPath query to get nth instance of an element
...do not control) that has several input elements all with the same fixed id attribute of "search_query" . The contents of the file can change, but I know that I always want to get the second input element with the id attribute "search_query" .
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LEFT OUTER joins in Rails 3
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@posts = Post.joins("LEFT OUTER JOIN users ON users.id = posts.user_id").
joins(:blog).select
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what is the difference between GROUP BY and ORDER BY in sql
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Can you please provide an example?
– Rice
Sep 13 '17 at 16:06
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Unsafe JavaScript attempt to access frame with URL
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could you elaborate more on exactly what you did here?
– Devin G Rhode
Apr 13 '12 at 9:39
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