javascript - simple jquery second counter -

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What is the easiest way to increase a variable in 1 second? 

  var counter = 0; Set interval (function () {++ counter;}, 1000);

Additionally, if you need to turn it off again, it makes this possible: 

  var counter = 0; Var myInterval = setInterval (function () {++ counter;}, 1000); // counter to stop interrupt (myInterval);

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