Question

When I click “End”, it doesn’t destroy (lack of a better word) the setTimeout function.
You’ll notice the json file is called, at some point 6 times

Note: I left a console.log in the code to show you the issue I speak of (so ensure you have your console open).

Requirements: By default the json file should load once, then upon clicking “Start”, the json file needs to be called (every x secs) until “End” is clicked (in which case the polling will stop).

Answer 1

You should call completePoll() on click of “end” link.

FYI: The _this.completePoll(cfg); with in the setTimeout clears the previous timeout handler which has already executed.

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Also, if you called the startPoll function more than once, without clearing the current timeout, you will end up creating another timeout cycle and will overwrite the previous handler.

if(_this.setPolling){clearTimeout(_this.setPolling);_this.setPolling=0;}

Add the above line in the beginning of the startPoll function which will kill the running timer.