Question

目前我有这个循环：

<tr>
    <td class="description" colspan="5" >Trasaction detail here...</td>
</tr>

然后，我想在每个偶数行添加下面的代码。

问题是我无法在上面的循环中访问变量<table> <tr> <td class="branch">Branch</td> <td class="date">Date</td> <td class="account">Account - Account Name</td> <td class="debit">100000</td> <td class="credit"> </td> </tr> <tr> <td class="branch">Branch</td> <td class="date">Date</td> <td class="account">Account - Account Name</td> <td class="debit"> </td> <td class="credit">100000</td> </tr> <tr> <td class="description" colspan="5" >Trasaction detail here...</td> </tr> <tr> <td class="branch">Branch</td> <td class="date">Date</td> <td class="account">Account - Account Name</td> <td class="debit">30000</td> <td class="credit"> </td> </tr> <tr> <td class="branch">Branch</td> <td class="date">Date</td> <td class="account">Account - Account Name</td> <td class="debit"> </td> <td class="credit">30000</td> </tr> <tr> <td class="description" colspan="5" >Trasaction 2 detail here...</td> </tr> </table>。怎么解决这个问题？

修改结果应该是这样的：

＆＃13;

str = 'abcdabcd';

arr1 = str.match(/a|c/g);
arr2 = str.match(/b|d/g);

check1 = arr1.length;
console.log(arr1.length);
check2 = arr2.length;
console.log(arr2.length);
if (check1 % 2 == 0 && check2 % 2 == 0) {
  console.log('both even');
}

＆＃13;

Answer 1

这样的事情：

<table>
  <ng-template ngFor let-even="even" let-odd="odd" let-n [ngForOf]="[42, 42, 43, 43, 1, 2, 3]">
    <tr>
      <td class="branch">Branch</td>
      <td class="date">Date</td>
      <td class="account">Account {{n}} - Account Name</td>

      <td class="debit" *ngIf="even">100000</td>
      <td class="credit" *ngIf="even">&nbsp;</td>

      <td class="debit" *ngIf="odd">&nbsp;</td>
      <td class="credit" *ngIf="odd">100000</td>
    </tr>
    <tr *ngIf="odd">
      <td class="description" colspan="5" >Trasaction detail here...</td>
    </tr>
  </ng-template>
</table>

添加每个奇数/偶数

1 个答案: