try {
// Try to run this code
}
catch(err) {
// if any error, Code throws the error
}
finally {
// Always run this code regardless of error or not
//this block is optional
}var someNumber = 1;
try {
someNumber.replace("-",""); //You can't replace a int
} catch(err) {
console.log(err);
}try { // Try to run this code
alert( 'try' );
if (confirm('Make an error?')) BAD_CODE();
} catch (e) { // Code throws error
alert( 'catch' );
} finally { // Always run this code regardless of error or not
alert( 'finally' );
}<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> try {
alert( 'try' );
if (confirm('Make an error?')) BAD_CODE();
} catch (e) {
alert( 'catch' );
} finally {
alert( 'finally' );
}try {
// try_statements
}
catch(error) {
// catch_statements
}
finally() {
// codes that gets executed anyway
}