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CSSStyleDeclaration JS Conversion


JavaScript Matriz copyWithin()

Ejemplos

Copie los dos primeros elementos de la matriz en los dos últimos elementos de la matriz:

const fruits = ["Banana", "Orange", "Apple", "Mango"];
fruits.copyWithin(2, 0);

Copie los dos primeros elementos de la matriz en la tercera y cuarta posición:

const fruits = ["Banana", "Orange", "Apple", "Mango", "Kiwi"];
fruits.copyWithin(2, 0, 2);

Definición y uso

El copyWithin()método copia los elementos de la matriz en otra posición de la matriz.

El copyWithin()método sobrescribe los valores existentes.

El copyWithin()método no agrega elementos a la matriz.


Sintaxis

array.copyWithin(target, start, end)

Parámetros

Parameter Description
target Required.
The index (position) to copy the elements to.
start Optional.
The start index (position). Default is 0.
end Optional.
The end index (position). Default is the array length.

Valor devuelto

Escribe Descripción
Una matrizLa matriz cambiada.


Compatibilidad con navegador

copyWithin()es una característica de ECMAScript6 (ES6).

ES6 (JavaScript 2015) es compatible con todos los navegadores modernos:

Chrome Edge Firefox Safari Opera
Yes Yes Yes Yes Yes

copyWithin()no es compatible con Internet Explorer 11 (o anterior).