Execute last async call only and ignore other calls

output

var clear;
function calling (param, time) { 
  clearTimeout(clear);
    var promise = new Promise(function(resolve, reject) {
      clear = setTimeout(() => resolve(param), time);
    });

  promise.then(r => console.log('Do whatever you want', r));
}

calling('him', 3000);
calling('gup', 2000);
calling('ravi', 1000);
calling('God', 0);