check if JSON value is not null

Display items in ng-repeat only when the value of a certain key is not empty.

Here is the code snippet:

<a class="item" href="#" ng-repeat="e in events | orderBy:'match_time'" ng-if="e.match_timer !== NaN && e.match_status !== 'FT'">

The structure of e.match_timer is as follows:

{
match_timer: ""
}

Answer №1

When using ng-if, you have the option to set your condition as shown below:

<a class="item" href="#" ng-repeat="e in events | orderBy:'match_time'" ng-if="e.match_timer !== '' && e.match_status !== 'FT'">

By doing this, only elements that are not empty for e.match_timer and have a value other than FT will be displayed.

Answer №2

Verify the size of the text.

Check if e.match_timer has a length greater than zero or is a number greater than zero.

Answer №3

It is recommended to use ng-filter instead of ng-if, as shown below:

HTML:

<a class="item" href="#" ng-repeat="e in events | orderBy:'match_time' | filter:filterExpression">{{e.match_timer}}</a>

JavaScript:

myApp.filter('filterExpression', function() {
  return function (e) {
    return typeof (e.match_timer) === 'string' && e.match_status !== 'FT'
  };
});

Check out the demo here: http://jsfiddle.net/HB7LU/9381/

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