How can you handle exceptions in Ruby?

Exception handling is a good way to catch errors in Ruby programs. There are three ways of handling exceptions: Catch an exception and handle it by returning a message or aborting execution with an error code. Receive an exception and raise another exception that you can catch later on, which will resume the execution of your own code after raising another exception. Ignore exceptions completely and let them bubble up until they reach the top level where they can be handled by your application's main logic

What are the different ways to handle exceptions?

The following are the different ways to handle exceptions: Raise an exception in a try block and handle it in a catch block Throw an exception and catch it in a try block, with final blocks if needed Catch an exception and return a default value or null value

What is the best way to handle exceptions in Ruby?

Exceptions can be handled in multiple ways: use try/catch blocks to catch exceptions and handle them accordingly use a rescue block to handle exceptions that were not caught by the try/catch blocks use super() to call the parent class's method if an exception was not caught by the try/catch blocks

Ruby Programming Course > Exception

Handling Exceptions

15.8k

Start a new search

To find content from modules and lessons

Exception handling is a good way to catch errors in Ruby programs. There are three ways of handling exceptions:

Catch an exception and handle it by returning a message or aborting execution with an error code.
Receive an exception and raise another exception that you can catch later on, which will resume the execution of your own code after raising another exception.
Ignore exceptions completely and let them bubble up until they reach the top level where they can be handled by your application's main logic

The following are the different ways to handle exceptions:

Raise an exception in a try block and handle it in a catch block
Throw an exception and catch it in a try block, with final blocks if needed
Catch an exception and return a default value or null value

Exceptions can be handled in multiple ways:

use try/catch blocks to catch exceptions and handle them accordingly
use a rescue block to handle exceptions that were not caught by the try/catch blocks
use super() to call the parent class's method if an exception was not caught by the try/catch blocks

Some of the most common exceptions you may run into when using Ruby are those related to missing data, division by zero, and undefined methods.

A common pattern in Ruby is to raise exceptions when a condition is not met. For example, the following code will raise an exception if the number of items in the list is not prime:

def divisible_by?(number)
if number % 2 == 0
raise "Divisible by 2"
end

Learner's Ratings

4.7

Overall Rating

Reviews

Manoj kumar

good for practise

kishan ambaliyala

Test Review

Dipika

good

NAVNEET MAHESWARI

EASY TO UNDERSTAND

achyut

nice

AMAN AGARWAL

best for learning

KAKUSTHYA YADAV

Amazing course

Prabhat Yadav

Superb course content and easy to understand.

STENIJERINRAJ PAULRAJ

Resourceful...

Rajni Kahirba

Good

Handling Exceptions

Start a new search

How can you handle exceptions in Ruby?

What are the different ways to handle exceptions?

What is the best way to handle exceptions in Ruby?

What are some common Ruby exceptions?

How can you handle Exceptions#raise in Ruby?

Learner's Ratings

Reviews

Manoj kumar

kishan ambaliyala

Dipika

NAVNEET MAHESWARI

achyut

AMAN AGARWAL

KAKUSTHYA YADAV

Prabhat Yadav

STENIJERINRAJ PAULRAJ

Rajni Kahirba

Course Content

Introduction to Ruby

How to use LearnVern

What is RVM?

How to Install RVM & Ruby Practical

Assignmen of installation version

RVM Functions

RVM Functions Practicals

RVM Assignment-1

RVM Assignment-2

Variables Introductions

Local & Global Variables

Instance & Class Variables

Constant

Boolean

Numbers

Symbols

Arrays

Hashes

Strings

Object Oriented

Class & Objects

Initializer Method

Instance Method

Initializer Instance Method Practical

Assignment of Initialize Method

Assignment of Instance method

Class Method

Class Method Practical

Class & Methods

Assignment of Class Method

Attribute

Assignment of attr_reader

Assignment of attr_assessor

Assignment of att_write

Control_Structure Intro

If Else Statement

Assignment of If Else Statement

Unless Statement

Case Statement

Assignment of Case Statement

Intro + While Loop

Assignment of While Loop

Until Loop

Assignment of Until Loop

For Loop

Assignment of For Loop

Break Statement

Assignment of Break Statement

Next Statement

Assignment of Next Statement

Redo Statement

Assignment of Redo Statement

Assignment of Control Structure

Introduction of Comments

Assignment of Single line Comments

Assignment of Multi line Comments

Arithmetic Operators

Arithmetic Operator Example

Assignment of Arithmetic Operators

Assignment Operators