[英]Array Data in Table JS
我想獲取兩個數組的內容,分別collected = [1, 0, 2,]
teacher = ['Zimmerman', 'Tischler', 'Johnson']
collected = [1, 0, 2,]
和teacher = ['Zimmerman', 'Tischler', 'Johnson']
並使用sort()
方法在表中顯示這些數組。 這樣看起來像這樣:
約翰遜-2
齊默爾曼-1
蒂施勒-0
有人知道該怎么做嗎?
您可以使用按collected
排序並使用indexOf
函數
請參閱工作示例:
var collected = [1, 0, 2]; var teacher = ['Zimmerman', 'Tischler', 'Johnson']; var res = collected.slice().sort((a, b) => b - a) .map(e => `<tr><td>${teacher[collected.indexOf(e)]}</td> <td>${e}</td></tr>`).join(''); document.write('<table>' + res + '</table>' );
完整的例子:
<table id="tab" border="1">
</table>
<script type="text/javascript">
var
collected,
teacher,
table,
data = '',
source = [];
collected = [1, 0, 2,];
teacher = ['Zimmerman', 'Tischler', 'Johnson'];
for (var i in collected) {
source.push([collected[i], teacher[i]]);
}
source.sort(function(a, b) {
return a[0] < b[0];
});
table = document.getElementById('tab');
for (var i in source) {
data += '<tr><td>' + source[i][0] + '</td><td>' + source[i][1] + '</td></tr>';
}
table.innerHTML = data;
</script>
結果:
您可以對索引進行排序,並將該數組用於以后的內容組裝。
var collected = [1, 0, 2, ], teacher = ['Zimmerman', 'Tischler', 'Johnson'], cIndices = collected.map(function (_, i) { return i; }), table = document.createElement('table'); cIndices.sort(function (a, b) { return collected[b] - collected[a]; }); cIndices.forEach(function (a) { function getTD(s) { var td = document.createElement('td'); td.innerHTML = s; return td; } var tr = document.createElement('tr'); tr.appendChild(getTD(teacher[a])); tr.appendChild(getTD(collected[a])); table.appendChild(tr); }); document.body.appendChild(table);
將result
用於業務邏輯,並將html
用於演示。 適當的方法:
var collected = [1, 0, 2], teacher = ['Zimmerman', 'Tischler', 'Johnson'], result = {}, html = ''; // business logic collected.forEach(function (e, i) { result[e] = teacher[i]; }); // presentation Object.keys(result) .sort() .reverse() .forEach(function (e) { html += '<tr><td>' + result[e] + '</td>'; html += '<td>' + e + '</td></tr>'; }); document.write('<table>' + html + '</table>');
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