trycatch js code example

Example 1: js tan-1

Math.atan(2);

Example 2: 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 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: try catch error

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

Example 6: lastindexof js

string.lastIndexOf("subString")