Error handling is an essential part of any software development process. In TypeScript, we have multiple ways to handle errors, and one of the most concise and readable approaches is using ternary operators.

The ternary operator, also known as the conditional operator, allows us to write a compact expression that evaluates a condition and returns a value based on that condition.

Let’s take a look at how we can use ternary operators for conditional error handling in TypeScript:

function divide(a: number, b: number): number {
  return b !== 0 ? a / b : /* handle division by zero error */;
}

const result = divide(10, 0);
console.log(result);

In the code snippet above, we have a divide function that takes two parameters, a and b. We want to perform division on a by b. However, we need to handle the scenario where b is zero to avoid a division by zero error.

Using a ternary operator, we check if b is not equal to zero (b !== 0). If the condition is true, we perform the division (a / b). If the condition is false (i.e., b is zero), we can replace /* handle division by zero error */ with an appropriate error handling mechanism, such as throwing an exception, logging an error, or returning a default value.

This approach allows us to handle errors in a single line of code without the need for additional if-else statements or try-catch blocks.

By using ternary operators for conditional error handling, we improve the readability and maintainability of our code. However, keep in mind that this approach may not be suitable for all error handling scenarios. Sometimes, more complex error handling logic may require a different approach.

#typescript #errorhandling