Protractor : wait for element to become invisible/hidden

Question

I saw other protractor related post mentioning about how to wait for an element to become visible. However, recently, I ran into an opposite use case. I wanted to wait for a

Answer 1

Using the elementexplorer (https://github.com/angular/protractor/blob/master/docs/debugging.md) I looked at the protractor object and found an answer that is working wonderfully for me:

var el = element(by.id('visibleElementId'));
browser.driver.wait(protractor.until.elementIsNotVisible(el));