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Hacer referencia a una matriz para realizar cambios en otra dadas ciertas condiciones en JavaScript

Tengo una matriz, llamada arr1 , ejemplo [9, 0, 0 ,9, 9] . Hice una copia de esto y lo llamé arr2 . Estoy tratando de agregar el valor uno ( 1 ) a ciertos índices en arr2 , dependiendo de la posición del índice de arr1 y de que sea un nueve ( 9 ).

Por ejemplo,

 if arr1[0] == 9, add one (1) to indexes [0], [3], [4] in arr2 if arr1[3] == 9, add one (1) to indexes [0], [2], [3] in arr2 if arr1[4] == 9, add one (1) to indexes [0], [1], [4] in arr2

Entonces arr2 se convierte en [12, 1, 1, 11, 11] .

Espero que esto tenga sentido, tengan paciencia conmigo, soy nuevo en esto.

Salud.

about 4 years ago · Juan Pablo Isaza
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El siguiente código es lo que logra su tarea.

 var arr1 = [9, 0, 0 ,9, 9]; var arr2 = [...arr1]; // create a copy or a clone or array one if(arr1[0] == 9){ arr2[0] += 1; arr2[3] += 1; arr2[4] += 1; } if(arr1[3] == 9){ arr2[0] += 1; arr2[2] += 1; arr2[3] += 1; } if(arr1[4] == 9){ arr2[0] += 1; arr2[1] += 1; arr2[4] += 1; } console.log(arr2)

about 4 years ago · Juan Pablo Isaza Report
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