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What is the difference between "dismiss" a modal and "close" a modal?
close(result) - a method that can be used to close a modal, passing a result dismiss(reason) - a method that can be used to dismiss a modal, passing a reason 
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Opening & Closing Angular 8 Modal Dialogs open('custom-modal-1') . To close a modal call the modalService. close() method with the id of the modal you want to close, e.g. modalService. close('custom-modal-1') .
Data-keyword="false" is to prevent closing modal while clicking Esc button, while data-backdrop="static" , allows you keep modal pop-up opened when clicking on Gray area.
We can close the modal pop-up in the following ways:modal('hide'); //Using modal pop-up Id.
You can simply use the modal('hide') method to hide or close the modal window in Bootstrap using jQuery. Other related Bootstrap's modal methods are modal('show') and modal('toggle') .
I found that the dismissing of a modal is best to use if it is from a user closing the modal (e.g. returning to the state behind the modal and invoking state.go('^')), and the closing of the modal is used when changing state via $state.go or ui-sref.
That way you can use the result promise to do different things, depending on the what happens.
result.then(function() { /* state change via ui-sref */ })
result.catch(function() { /* user closed modal */ })
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The answer is in the documentation, right after the two lines you quoted:
The open method returns a modal instance, an object with the following properties:
- close(result) - a method that can be used to close a modal, passing a result
- dismiss(reason) - a method that can be used to dismiss a modal, passing a reason
- result - a promise that is resolved when a modal is closed and rejected when a modal is dismissed
The important bit here being what happens to the promise. On close, the promise is resolved - essentially, the "success" callback fires. On dismiss, the promise is rejected, therefore running the "failure" callback instead.
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