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javascript find and remove object in array based on key value
I have been trying several approaches on how to find an object in an array, where ID = var, and if found, remove the object from the array and return the new array of objects.
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How exactly does tail recursion work?
...rsively compose the final value. In Tail Recursion they only reference the base case (last one evaluated). We call accumulator the argument that keeps track of the older values.
Recursion Templates
The regular recursive function go as follows:
type regular(n)
base_case
computation
ret...
The type must be a reference type in order to use it as parameter 'T' in the generic type or method
...or sure without a repro example):
public class Derived<SomeModel> : Base<SomeModel> where SomeModel : class, IModel
^^^^^
see this bit
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Simultaneously merge multiple data.frames in a list
...using the tidyverse packages. For comparison purposes below, you'll find a base R version using the same sample dataset.
1) Join them with reduce from the purrr package:
The purrr package provides a reduce function which has a concise syntax:
library(tidyverse)
list(x, y, z) %>% reduce(left_...
Break promise chain and call a function based on the step in the chain where it is broken (rejected)
...then(stepTwo).then(null, handleErrorOne)
Angular's promise library $q is based on kriskowal's Q library (which has a richer API, but contains everything you can find in $q). Q's API docs on GitHub could prove useful. Q implements the Promises/A+ spec, which goes into detail on how then and the pro...
When should static_cast, dynamic_cast, const_cast and reinterpret_cast be used?
...inheritance hierarchies. It is unnecessary when casting upwards (towards a base class), but when casting downwards it can be used as long as it doesn't cast through virtual inheritance. It does not do checking, however, and it is undefined behavior to static_cast down a hierarchy to a type that isn'...
ObservableCollection not noticing when Item in it changes (even with INotifyPropertyChanged)
...llectionChanged event firing.
public class CollectionViewModel : ViewModelBase
{
public ObservableCollection<EntityViewModel> ContentList
{
get { return _contentList; }
}
public CollectionViewModel()
{
_contentList = new ObservableCollection<...
Jquery insert new row into table at a certain index
...$('#my_table > tbody > tr').eq(i-1).after(html);
The indexes are 0 based, so to be the 4th row, you need i-1, since .eq(3) would be the 4th row, you need to go back to the 3rd row (2) and insert .after() that.
share
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Rename multiple files based on pattern in Unix
There are multiple files in a directory that begin with prefix fgh , for example:
22 Answers
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Fast and responsive interactive charts/graphs: SVG, Canvas, other?
...vis version has to recalculate all attributes on all elements.) The Canvas-based semantic zooming is a bit more zippy than SVG, but SVG semantic zooming still feels responsive.
Yet there is no magic bullet for performance, and these four possible approaches don't begin to cover the full space of po...