session timer is not updating per second

[cch5ng]

something is broken with setInterval logic; wonder if it is related to use of this

[cch5ng]

• case 1: if I don't correct for wrong this reference, then this refers to window rather than timer instance and there is an unterminated loop for 2nd condition of countDown()
  • when this refers to the window, then the countDown() call repeats but the displayRemainingTime() is not successful
• case 2: if I do correct for this reference and use a combination of that = this and function.call(), then the countDown only iterates one time (one second) and I'm not clear why
  • when this refers to the timer instance, then the countDown() call does not repeat but the displayRemainingTime() executes (just once)

[cch5ng]

fixed the immediate issue but there are some residual issues (opened separately) 28a09c4f8e544d55dd42201bf095774d24d53e10

• other thing is that the solution is not totally DRY but it works; I couldn't figure out the solution using prototype function

[cch5ng]

• read about this https://developer.mozilla.org/en-US/docs/Web/API/WindowTimers/setInterval#The_this_problem