Increasing the values of id attributes in AngularJS

Question

Increasing the values of id attributes in AngularJS

Here is an example of some HTML code:

<tr ng-repeat="x in y">
    <td>
         <div ng-attr-id="{{getId()}}"></div>
    </td>
    <td>
         <div ng-attr-id="{{getId()}}"></div>
    </td>
    <td>
         <div ng-attr-id="{{getId()}}"></div>
    </td>
</tr>

The goal is to assign a unique id to each <td> element, starting from 1 and then incrementing by one for each subsequent <td> element.

To achieve this, a function is created in the controller:

$scope.getId = function () {
    counter++;
    return counter;
}

However, when implementing this function, the following error occurs:

10 $digest() iterations reached. Aborting!

javascript angularjs increment

Answer 1

Answer №1

If you want to achieve this, you can utilize the $index feature:

<tr ng-repeat="x in y track by $index">
  <td>
    <div ng-attr-id="{{$index + 1}}"></div>
  </td>
</tr>

For nested loops, you have the option to set a new track value and combine it with $index or for a fixed number of elements, you can do something like this:

<tr ng-repeat="x in y track by $index">
  <td>
    <div ng-attr-id="{{$index*3 + 1}}"></div>
  </td>
  <td>
    <div ng-attr-id="{{$index*3 + 2}}"></div>
  </td>
  <td>
    <div ng-attr-id="{{$index*3 + 3}}"></div>
  </td>
</tr>

Answer 2

If you want to achieve this, you can utilize the $index feature:

<tr ng-repeat="x in y track by $index">
  <td>
    <div ng-attr-id="{{$index + 1}}"></div>
  </td>
</tr>

For nested loops, you have the option to set a new track value and combine it with $index or for a fixed number of elements, you can do something like this:

<tr ng-repeat="x in y track by $index">
  <td>
    <div ng-attr-id="{{$index*3 + 1}}"></div>
  </td>
  <td>
    <div ng-attr-id="{{$index*3 + 2}}"></div>
  </td>
  <td>
    <div ng-attr-id="{{$index*3 + 3}}"></div>
  </td>
</tr>

Answer 3

Answer №2

To access the iterator offset of a repeated element in AngularJS, you can utilize the $index variable within the ngRepeat directive.

The $index variable represents the iterator offset of the repeated element, ranging from 0 to length-1.

Learn more about ngRepeat

For example, you can use the following code:

<div ng-attr-id="{{$index + 1}}"></div>

In this case, we use $index + 1 to start the iterator from 1 instead of 0.

Answer 4

To access the iterator offset of a repeated element in AngularJS, you can utilize the $index variable within the ngRepeat directive.

The $index variable represents the iterator offset of the repeated element, ranging from 0 to length-1.

Learn more about ngRepeat

For example, you can use the following code:

<div ng-attr-id="{{$index + 1}}"></div>

In this case, we use $index + 1 to start the iterator from 1 instead of 0.

Increasing the values of id attributes in AngularJS

Answer №1

Answer №2

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