react native - How to dismiss AlertIOS -

how can dismiss alertios prompt? see example code. problem is, when push "cancel" button, "this.newfile()" function called. ideas how fix this.

newfileprompt: function() {     alertios.prompt(         'new file',         'new file',         [             {text: 'cancel'},             {text: 'create', onpress: this.newfile()},         ]     ); },  newfile: function() {     alert("new file"); }, 

also interesting: if change code to:

newfileprompt: function() {     alertios.prompt(         'new file',         'new file',         [             {text: 'cancel', onpress: this.cancel()},             {text: 'create', onpress: this.newfile()},         ]     ); },  cancel: function() {     alert("irgendwas"); },  newfile: function() {     alert("new file"); }, 

both functions called everytime, regardless of button pressed. @ first "new file" alert appears , after submitting alert, "irgendwas" alert appears.

i've found solution. changed

onpress: this.cancel() 

to

onpress: () => this.cancel() 

react native more trial , error else. or quiz game :)