how to handle error javascript code example

Example 1: javascript try catch

<html>  
<head>Exception Handling</head>  
<body>  
<script>  
try {  
   throw new Error('This is the throw keyword'); //user-defined throw statement.  
}  
catch (e) {  
  document.write(e.message); // This will generate an error message  
}  
</script>  
</body>  
</html>

Example 2: try catch error

try {
console.log('hello');
}
catch (e){
}

Example 3: how to handle error js

// just sample try catch javascript
try {
  // doing some methods
}catch (e) {
  // showing message or other proses you want
  console.log(e.message)
}