Conditional Binding With Angularjs, Concatenate And Bind Value If Property Is Not Empty

I am new to Angular and am trying to bind a string to a model if the value !== empty. This work for one input, but I would like to combine multiple text inputs into one string. &l

Solution 1:

Live demo here (click).

You could simply add the ng-show or ng-hide directive to the h3 itself if you are wanting to hide the whole element.

Alternatively, you could use ternary in the binding to determine what is bound:

{{foo ? 'some string '+foo : ''}}

Explanation:

foo //if $scope.foo is truthy (not empty)
? 'some string '+foo //bind a string with $scope.foo concatenated to the end
: '' //otherwise, bindin an empty string

For your code, it would be:

<h3>{{data.source ? 'additionToString' + data.source : ''}}</h3>

Based on your comments, you may also be looking to return a binding with a function: Live demo (click).

<inputng-model="foo"><h3ng-show="foo">{{bar()}}</h3><h3>{{foo ? bar() : ''}}</h3>

JavaScript:

$scope.foo = '';
$scope.bar = function() {
  return'added value '+$scope.foo;
};