The below action i want to perform on click of back button existing price in previous page has to update with new value which will be send along with back button.
please help to get soltution i am new to ionic
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Possible duplicate of [Ionic override all BACK button behaviour for specific controller](https://stackoverflow.com/questions/32231737/ionic-override-all-back-button-behaviour-for-specific-controller) – Kaddath Oct 27 '17 at 08:01
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Possible duplicate of [How to handle back button on Ionic 2](https://stackoverflow.com/questions/41373774/how-to-handle-back-button-on-ionic-2) – Duannx Oct 28 '17 at 01:53