Creating implementation for idiom 224 : Add element to the beginning of the list

Idiom

# 224 Add element to the beginning of the list

Created by

Lead paragraph

Insert the element x at the beginning of the list items.

New implementation

Language

Imports

Code

Documentation URL

Original attribution URL

Online runnable demo

Username

Be concise.

Be useful.

All contributions dictatorially edited by webmasters to match personal tastes.

Please do not paste any copyright violating material.

Please try to avoid dependencies to third-party libraries and frameworks.

Other implementations

(def items2 (conj items x))

#include <list>

items.emplace_front(x);

#include <list>

items.push_front(x);

using System.Linq;

items = items.Prepend(x).ToList();

items.Insert(0, x);

items = x ~ items;

items = [x, ...items];

items2 = [x | items]

items = [x, items]

func prepend[S ~[]T, T any](items *S, x ...T) {
	*items = append(*items, x...)
	copy((*items)[len(x):], *items)
	copy(*items, x)
}

func prepend[S ~[]T, T any](items *S, x ...T) {
	*items = append(x, *items...)
}

items = append([]T{x}, items...)

items = append(items, x)
copy(items[1:], items)
items[0] = x

f(x:xs)= x:xs

items2 = x : items

items = [x, ...items];

items.unshift(x);

items.add(0, x);

table.insert(items, 1, x)

array_unshift($items, $x);

items.insert(0,x);

unshift @items, $x

items.insert(0, x)

items = [x] + items

items.prepend(x)

items.unshift(x)

use std::collections::VecDeque;

items.push_front(x);

val newList = x :: items

Imports System.Linq

items = items.Prepend(x).ToList()

items.Insert(0, x)