JavaScript

Error Handling

try {
  const JsonString = '{ username: "sam.smith", "password": "123456" }';
  const inputData = JSON.parse(JsonString);

  if (inputData.username === "sam.smith" && inputData.password === "123456") {
    console.log("You are logged in successfully");
  } else {
    console.log("Invalid credentials");
  }
} catch {
  console.log("Something went wrong")
}

try {
  const JsonString = '{ username: "sam.smith", "password": "123456" }';
  const inputData = JSON.parse(JsonString);

  if (inputData.username === "sam.smith" && inputData.password === "123456") {
    console.log("You are logged in successfully");
  } else {
    console.log("Invalid credentials");
  }
} catch (error) {
  if (error instanceof SyntaxError) {
    console.log("Invalid user input");
  } else {
    throw error;
  }
}