try and catch inside object javascript code example

Example 1: node js try catch

try {
  nonExistentFunction();
} catch (error) {
  console.error(error);
  // expected output: ReferenceError: nonExistentFunction is not defined
  // Note - error messages will vary depending on browser
}

Example 2: javascript try

var someNumber = 1;
try {
  someNumber.replace("-",""); //You can't replace a int
} catch(err) {
 console.log(err);
}

Example 3: try catch javascript

"The try...catch statement marks a block of statements to try and specifies"
"a response should an exception be thrown."

try {
  nonExistentFunction();
} catch (error) {
  console.error(error);
  // expected output: ReferenceError: nonExistentFunction is not defined
  // Note - error messages will vary depending on browser
}

Example 4: try catch throwing error in javascript

let json = '{ "age": 30 }'; // incomplete data

try {

  let user = JSON.parse(json); // <-- no errors
  alert( user.name ); // no name!

} catch (e) {
  alert( "doesn't execute" );
}