try catch in typescript code example

Example 1: javascript try

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

Example 2: 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 3: finally always after try catch

Finally block is ALWAYS executed AFTER try / catch Javascript blocks.

Example 4: blank catch js

try {
  try_statements
}
[catch [(exception_var)] {
  catch_statements
}]
[finally {
  finally_statements
}]