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Intento acceder a los elementos de la matriz pero no estoy definido

No puedo acceder a los elementos de la matriz. No he puesto el código completo porque es demasiado largo pero explico lo que he hecho.

Tengo una matriz de resultados del siguiente tipo:

results [i] = myArr.Items [i]

o así hecho:

 {3: {...}, 4: {...}, 9: {...}} 3: {type: 'Image', id_a: '123456', value: 'moto_guzzi_v100_mandello.jpg', number: 3, id: 3} 4: {type: 'Text', id_a: '123456', value: 'The star of the Piaggio group stand is without doubt ... Discover all her secrets with our video', number: 2, id: 2} 9: {type: 'Text', id_a: '123456', value: 'The V100 Mandello celebrates the 100th anniversary of the house and… ovative. Let's find out together with our video. ', Number: 4, id: 4}

y estoy tratando de recuperar los elementos como se muestra en el siguiente código:

 Object.entries(results).forEach(function (item) { let child = document.createElement("tr"); child.innerHTML = ` <td>${item.number}</td> <td>${item.type}</td> <td>${item.value}</td> table.appendChild(child); })
 <table id="my-table" width="90%"> <tr> <th>Number</th> <th>Type</th> <th>Value</th> </tr> </table>

Solo obtengo el valor undefined para cada valor.

¿Puede alguien amablemente explicarme la forma correcta de acceder a estos valores?

about 4 years ago · Juan Pablo Isaza
2 answers
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0

No use Object.entries . La forma correcta de iterar sobre su matriz es:

 for (const i in results) { const item = results[i]; let child = document.createElement("tr"); child.innerHTML = ` <td>${item.number}</td> <td>${item.type}</td> <td>${item.value}</td> table.appendChild(child); }
about 4 years ago · Juan Pablo Isaza Report

0

Object.entries() hace que su lista de objetos sea iterable, pero si console.log cada item , verá que es una matriz con 2 entradas: el índice (0) y los datos (1)

 let results = { 3: { type: 'Image', id_a: '123456', value: 'moto_guzzi_v100_mandello.jpg', number: 3, id: 3 }, 5: { type: 'Text', id_a: '123456', value: 'The star of the Piaggio group stand is without doubt ... Discover all her secrets with our video', number: 2, id: 2 }, 8: { type: 'Text', id_a: '123456', value: 'The V100 Mandello celebrates the 100th anniversary of the house and… ovative. Let\'s find out together with our video. ', Number: 4, id: 4 } }; Object.entries(results).forEach(item => { item = item[1]; let child = document.createElement("tr"); child.innerHTML = ` <td>${item.number}</td> <td>${item.type}</td> <td>${item.value}</td>` document.querySelector('#my-table').appendChild(child); })
 <table id="my-table" width="90%" border='1'> <tr> <th>Number</th> <th>Type</th> <th>Value</th> </tr> </table>

about 4 years ago · Juan Pablo Isaza Report
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