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In an array of objects, fastest way to find the index of an object whose attributes match a search
...ANSWER is the most EFFICIENT since it doesn't iterate the whole array. The selected answer will map complete array and then findIndex which is bound to iterate through whole array once
– Karun
Aug 2 '19 at 11:30
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Deleting DataFrame row in Pandas based on column value
...
Good update for query. It allows for more rich selection criteria (eg. set-like operations like df.query('variable in var_list') where 'var_list' is a list of desired values)
– philE
Sep 30 '14 at 20:32
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How can I profile C++ code running on Linux?
... Another nice introduction to perf exists at archive.li/9r927#selection-767.126-767.271 (Why the SO gods decided to delete that page from the SO knowledge base is beyond me....)
– ragerdl
What's the difference between std::move and std::forward
...alue of type X and returns an rvalue of type X.
With std::forward you can select the destination to some extent:
X x;
std::forward<Y>(x);
Casts the lvalue expression x of type X to an expression of type Y. There are constraints on what Y can be.
Y can be an accessible Base of X, or a ref...
nodeValue vs innerHTML and textContent. How to choose?
...
innerText is roughly what you would get if you selected the text and copied it. Elements that are not rendered are not present in innerText.
textContent is a concatenation of the values of all TextNodes in the sub-tree. Whether rendered or not.
Here is a great post det...
How to set input type date's default value to today?
...ing mobile. On Android 4.0.3 (at least) I've had issues where the new date selected via the popup date control is appended to todays date, rather than replaces it. E.g. you can end up with 2013-03-252013-03-27 rather than 2013-03-25, and there's no way for the user to change it.
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HTML table with 100% width, with vertical scroll inside tbody [duplicate]
...o Width Columns
Here is the jQuery version of above logic:
// Change the selector if needed
var $table = $('table'),
$bodyCells = $table.find('tbody tr:first').children(),
colWidth;
// Get the tbody columns width array
colWidth = $bodyCells.map(function() {
return $(this).width();
})....
How can I get Knockout JS to data-bind on keypress instead of lost-focus?
... "auto-populate" values ( like if the input field is named "firstname" ). selecting from the auto-populate doesnt work with "afterkeydown". is there a way to catch this?
– Anton
Sep 9 '12 at 0:01
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Android: install .apk programmatically [duplicate]
...my sdcard in download file.
// So please Check in DDMS tab and Select your Emulator.
//Toast.makeText(getApplicationContext(), "Download Complete on SD Card.!", Toast.LENGTH_SHORT).show();
//download the APK to sdcard then fire the Intent.
}
catc...
Is Using .NET 4.0 Tuples in my C# Code a Poor Design Decision?
...pport for tuples in C#:
private var GetDesserts()
{
return _icecreams.Select(
i => new { icecream = i, topping = new Topping(i) }
);
}
public void Eat()
{
foreach (var dessert in GetDesserts())
{
dessert.icecream.AddTopping(dessert.topping);
dessert.Eat()...