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angularjs - Changing css class from «fa fa-search» to «fa fa-refresh fa-spin» on a button, in angular http request? - Stack Overflow
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![angularjs - Changing css class from «fa fa-search» to «fa fa-refresh fa-spin» on a button, in angular http request? - Stack Overflow angularjs - Changing css class from «fa fa-search» to «fa fa-refresh fa-spin» on a button, in angular http request? - Stack Overflow](https://i.stack.imgur.com/ZliiR.png)