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LINQ Aggregate algorithm explained
... to make 6. Then adds 6 and 4 to make 10.
Example 2. create a csv from an array of strings
var chars = new []{"a","b","c", "d"};
var csv = chars.Aggregate( (a,b) => a + ',' + b);
Console.WriteLine(csv); // Output a,b,c,d
This works in much the same way. Concatenate a a comma and b to make a,b...
How can I return an empty IEnumerable?
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Enumerable.Empty<T> actually returns an empty array of T (T[0]), with the advantage that the same empty array is reused. Note that this approach is not ideal for non-empty arrays, because the elements can be modified (however an array can't be resized, resizing involves ...
Best way to get InnerXml of an XElement?
... Powell (0.324 seconds)
StringBuilder - Vin (0.333 seconds)
String.Join on array - Terry (0.360 seconds)
String.Concat on array - Marcin Kosieradzki (0.364)
Method
I used a single XML document with 20 identical nodes (called 'hint'):
<hint>
<strong>Thinking of using a fake addres...
Can Python test the membership of multiple values in a list?
... ('b' in ['b' ...]), which then evaluates to 'a', True since 'b' is in the array.
See previous answer for how to do what you want.
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what is the preferred way to mutate a React state?
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concat returns a new array, so you can do
this.setState({list: this.state.list.concat([newObject])});
another alternative is React's immutability helper
var newState = React.addons.update(this.state, {
list : {
$push : [newO...
Multiline strings in JSON
...create there are not multiline strings (which is not possible anyway), but arrays with strings inside
– Samuel Rivas
Jun 12 '15 at 13:04
3
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Two statements next to curly brace in an equation
...cument}
This is your only binary choices
\begin{math}
\left\{
\begin{array}{l}
0\\
1
\end{array}
\right.
\end{math}
\end{document}
This code produces something which looks what you seems to need.
The same example as in the @Tombart can be obtained with similar code.
\do...
PowerShell: Store Entire Text File Contents in Variable
...ut it wasn't until 3.0 that it got -Raw. Without that, it gets stored as a array of lines.
– jpmc26
Jan 30 '16 at 3:53
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Generating all permutations of a given string
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Elegant, yes. But a solution that converts to a char array and swaps to generate the permutations will require much less copying and generate much less garbage. Also this algorithm fails to take repeated characters into account.
– Gene
Ma...
Java LinkedHashMap get first or last entry
... doing something like (to get the last entry):
linkedHashMap.entrySet().toArray()[linkedHashMap.size() -1];
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