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¿Por qué esta deconstrucción de la longitud de la matriz de retorno?

No puedo encontrar una descripción sobre este código en JS...

 let arr = [3, 1, 5, 1, 2, 1, 1]; let { length } = arr; console.log(length);

¿Por qué este código funciona como arr.length y cómo debo llamarlo?

about 4 years ago · Santiago Trujillo
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