Is there a way to increment the value of $index in ng-repeat by a specific amount? For example, if I want to display two values at a time, how can I ensure that the next iteration starts with the third value instead of the second value?
<div ng-controller="MyCtrl">
<div ng-repeat="text in arr">
<span>{{arr[$index]}}</span>
<span>{{arr[$index+1]}}</span>
</div>
</div>
If you want to display every other element from an array in your Angular controller, you can achieve this using a custom function that generates a new array with the desired elements.
Check out the modified jsfiddle
In the example provided, a function named $scope.range() has been created for this purpose.
var myApp = angular.module('myApp',[]);
function MyCtrl($scope) {
$scope.arr=['hi1','hi2','hi3','hi4','hi5','hi6','hi7'];
$scope.range = function(max, step) {
step = step || 1;
var input = [];
for (var i = 0; i <= max; i += step) {
input.push(i);
}
return input;
};
}
You can then use this new function in your ng-repeat directive by indicating the maximum number of elements to include and the increment value to skip elements. For instance, to display every other element from arr, you would use num in range(arr.length, 2).
The function will generate an array like the following to be used by the ng-repeat:
[0, 2, 4, 6]
Your ng-repeat will iterate four times based on this new array, resulting in four rows. Each pair of <span> elements within it will correspond to two columns displaying consecutive values.
<div ng-controller="MyCtrl">
<div ng-repeat="num in range(arr.length, 2)">
<span>{{arr[num]}}</span>
<span>{{arr[num+1]}}</span>
</div>
</div>
To achieve three columns instead, you can simply adjust the increment value in the ng-repeat statement to 3 like so:
<div ng-repeat="num in range(arr.length, 3)">For more details and to view the updated code, please refer to the revised jsfiddle.
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