js stop code execution code example

Example 1: javascript stop execution

// EXAMPLE
throw new Error("This is your custom error message");

/*
SYNTAX
throw new Error("<your-custom-message>");
*/

Example 2: javascript stop execution

return false;    // or return;
// or
throw new Error("Here we stop");
// Node.js:
process.exit();

Example 3: 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.");