stop fonction javascript code example

Example 1: stop a function javascript

function func() {
  if (conditionToStopFunction)
    return; //Nothing after return will be executed
  
  console.log("Hello World"); //This will not be executed if 'conditionToStopFunction' is true
}

Example 2: in javascipt how to stop further page processing

if(someEventHappened) return; // Will prevent subsequent code from being executed
alert("This alert will never be shown.");