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Insert an element at a specific index in a list and return the updated list
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l.insert(index, obj) doesn't actually return anything. It just updates the list.
As ATO said, you can do b = a[:index] + [obj] + a[index:].
However, another way is:
a = [1, 2, 4]
b = a[:]
b.insert(2, 3)
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Why not infer template parameter from constructor?
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This is actually a great point which I never considered. I don't see any way around the fact that the pointer would have to be type specific (i.e. it would have to be MyClass<string>* pm). If that's the case, then all you would end...
When would I need a SecureString in .NET?
...-securestring .
We should remove encryption from SecureString across all platforms in .NET Core - We should obsolete SecureString - We probably shouldn't expose SecureString in .NET Core
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How to update two tables in one statement in SQL Server 2005?
...se a transaction to make sure that two UPDATE statements are treated atomically. You can also batch them to avoid a round trip.
BEGIN TRANSACTION;
UPDATE Table1
SET Table1.LastName = 'DR. XXXXXX'
FROM Table1 T1, Table2 T2
WHERE T1.id = T2.id
and T1.id = '011008';
UPDATE Table2
SET Table2.WAprr...
Parsing JSON Object in Java [duplicate]
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Performance of org.json is amongst the worst of all libraries + that lib was developed as proof of concept in the early days of JSON. Choose a json lib that performs well: github.com/fabienrenaud/java-json-benchmark
– fabien
Jun 27 '1...
What's the proper value for a checked attribute of an HTML checkbox?
We all know how to form a checkbox input in HTML:
8 Answers
8
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Delete directories recursively in Java
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With Java 7, we can finally do this with reliable symlink detection. (I don't consider Apache's commons-io to have reliable symlink detection at this time, as it doesn't handle links on Windows created with mklink.)
For the sake of history, here's...
Some projects cannot be imported because they already exist in the workspace error in Eclipse
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doesn´t work in all cases, it´s better to rename one of the two.
– Sebastian Juarez
Dec 20 '12 at 7:34
2
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Selecting text in an element (akin to highlighting with your mouse)
...Range();
range.selectNodeContents(node);
selection.removeAllRanges();
selection.addRange(range);
} else {
console.warn("Could not select text in node: Unsupported browser.");
}
}
const clickable = document.querySelector('.click-me');
clickable.addEv...
How to exit if a command failed?
...on-zero).
Using ( ) makes the command inside them run in a sub-shell and calling a exit from there causes you to exit the sub-shell and not your original shell, hence execution continues in your original shell.
To overcome this use { }
The last two changes are required by bash.
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