js catch code example

Example 1: try catch in javascript

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
}

Example 2: catch javascript

//Catch is the method used when your promise has been rejected.
//It is executed immediately after a promise's reject method is called.
//Here’s the syntax:


myPromise.catch(error => {
  // do something with the error.
});

//error is the argument passed in to the reject method.

Example 3: javascript try

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

Example 4: finally always after try catch

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

Example 5: blank catch js

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

Example 6: try catch error

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