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Proxy and Reflect
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Apply suggestions from @vplentinax
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reformulacion 181 "proxy vs target"
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Legibilidad linea 328
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Update 1-js/99-js-misc/01-proxy/article.md
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Merge branch 'master' into leproso
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Update article.md
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fix link a mdn proxy no func c/ [ ](mdn:)
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Original file line number | Diff line number | Diff line change |
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@@ -1,33 +1,33 @@ | ||
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# Accessing array[-1] | ||
# Accediendo a array[-1] | ||
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In some programming languages, we can access array elements using negative indexes, counted from the end. | ||
En algunos lenguajes de programación podemos acceder a los arrays usando índices negativos, contando desde el final. | ||
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Like this: | ||
Como esto: | ||
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```js | ||
let array = [1, 2, 3]; | ||
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array[-1]; // 3, the last element | ||
array[-2]; // 2, one step from the end | ||
array[-3]; // 1, two steps from the end | ||
array[-1]; // 3, el último elemento | ||
array[-2]; // 2, el penúltimo elemento, uno antes del final | ||
array[-3]; // 1, el antepenúltimo elemento, dos antes el final | ||
``` | ||
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In other words, `array[-N]` is the same as `array[array.length - N]`. | ||
En otras palabras, `array[-N]` es lo mismo que `array[array.length - N]`. | ||
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Create a proxy to implement that behavior. | ||
Crea un proxy para implementar tal comportamiento. | ||
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That's how it should work: | ||
Así es como debe funcionar: | ||
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```js | ||
let array = [1, 2, 3]; | ||
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array = new Proxy(array, { | ||
/* your code */ | ||
/* tu código */ | ||
}); | ||
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alert( array[-1] ); // 3 | ||
alert( array[-2] ); // 2 | ||
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// Other array functionality should be kept "as is" | ||
// el resto de la funcionalidad debe mantenerse igual. | ||
``` |
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