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Correct way to populate an Array with a Range in Ruby
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@kakubei use concat instead of <<. Also, you shouldn't be getting "can't convert Range into Integer" unless order is an integer - in which case you'd be bit-shifting, not array-appending.
– Kelvin
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How to select following sibling/xml tag using xpath
...ss in the value of the @class attribute, the predicate to use is: contains(concat(' ', @class, ' '), ' name ') . But in this question the @class attributes do have only single values.
– Dimitre Novatchev
Jun 15 '15 at 15:17
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Convert pandas dataframe to NumPy array
...early the same (actually, using rec.fromrecords is a bit faster).
df2 = pd.concat([df] * 10000)
%timeit df2.to_records()
%%timeit
v = df2.reset_index()
np.rec.fromrecords(v, names=v.columns.tolist())
11.1 ms ± 557 µs per loop (mean ± std. dev. of 7 runs, 100 loops each)
9.67 ms ± 126 µs per l...
Is there any difference between GROUP BY and DISTINCT
...s. Use GROUPY BY if you want to apply aggregate operators (MAX, SUM, GROUP_CONCAT, ..., or a HAVING clause).
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Is Chrome's JavaScript console lazy about evaluating arrays?
... // and arr2 changes, then later value might be shown
4. arr.concat() // a new array is created, but same issue as slice(0)
5. JSON.stringify(arr) // works well as it takes a snapshot of the whole array
// or object, and the format shows the exact struct...
How to add additional fields to form before submit?
...orm = $(this).closest('form');
form = form.serializeArray();
form = form.concat([
{name: "customer_id", value: window.username},
{name: "post_action", value: "Update Information"}
]);
$.post('/change-user-details', form, function(d) {
if (d.error) {
alert("There was a problem ...
.NET / C# - Convert char[] to string
... 'o', 'c', 'k', '-', '&', '-', 'R', 'o', 'l', 'l' };
string s = String.Concat( c );
Debug.Assert( s.Equals( "Rock-&-Roll" ) );
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GetProperties() to return all properties for an interface inheritance hierarchy
...return type.GetProperties();
return (new Type[] { type })
.Concat(type.GetInterfaces())
.SelectMany(i => i.GetProperties());
}
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Entity framework linq query Include() multiple children entities
...clude(nameof(Employee)) In case one needs to go further down names have to concatent with nameof(Employee)+"."+nameof(Employee_Car)
– Karl
Jan 19 '18 at 9:18
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Append a Lists Contents to another List C#
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Perhaps you meant Concat ... though that would mean a lot of copying, and is a good illustration of how not to use LINQ.
– Jim Balter
Nov 10 '18 at 20:07
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