Rendering special characters in placeholder of input text box

问题

I need to show dots (● ) as the placeholder of the text input. But they are not rendering just showing the unicode in the placeholder. Please help me out

<input type="text" ng-model="inputText" placeholder="{{somePlaceholder}}" />

In the controller:

$scope.somePlaceholder = '●●';

Fiddle - http://jsfiddle.net/Lvc0u55v/8334/

回答1:

That's javaScript, you have to use \u escapes for Unicode characters.

$scope.somePlaceholder = '\u25cf\u25cf';

Or just write those dots literally (assuming the encoding of your script is declared properly by your web server).

$scope.somePlaceholder = '●●';

来源：https://stackoverflow.com/questions/38966750/rendering-special-characters-in-placeholder-of-input-text-box