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Is there an easy way to create ordinals in C#?
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21 Answers
21
Active
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Appending an element to the end of a list in Scala
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List(1,2,3) :+ 4
Results in List[Int] = List(1, 2, 3, 4)
Note that this operation has a complexity of O(n). If you need this operation frequently, or for long lists, consider using another data type (e.g. a ListBuffer).
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Convert a list to a data frame
I have a nested list of data. Its length is 132 and each item is a list of length 20. Is there a quick way to convert this structure into a data frame that has 132 rows and 20 columns of data?
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How do you express binary literals in Python?
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298
For reference—future Python possibilities:
Starting with Python 2.6 you can express binary l...
Convert columns to string in Pandas
...n (and therefore your keys to strings):
In [11]: df = pd.DataFrame([['A', 2], ['A', 4], ['B', 6]])
In [12]: df.to_json()
Out[12]: '{"0":{"0":"A","1":"A","2":"B"},"1":{"0":2,"1":4,"2":6}}'
In [13]: df[0].to_json()
Out[13]: '{"0":"A","1":"A","2":"B"}'
Note: you can pass in a buffer/file to save t...
Convert duration to hours:minutes:seconds (or similar) in Rails 3 or Ruby
...what a nub!
– cydonia
Nov 14 '10 at 2:13
1
yeah, those examples are daft
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How to pass parameters on onChange of html select
...lt;option value="Value1">Text1</option>
<option value="Value2">Text2</option>
<option value="Value3">Text3</option>
</select>
The above example gets you the selected value of combo box on OnChange event.
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Regex to validate password strength
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edited Mar 29 '16 at 10:14
Alan Moore
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How would I get a cron job to run every 30 minutes?
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edited Sep 27 '11 at 13:45
Tim Cooper
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How to display an unordered list in two columns?
...http://www.w3schools.com/cssref/css3_pr_columns.asp
CSS:
ul {
columns: 2;
-webkit-columns: 2;
-moz-columns: 2;
}
http://jsfiddle.net/HP85j/8/
Legacy Browsers
Unfortunately for IE support you will need a code solution that involves JavaScript and dom manipulation. This means that anytime ...