ternary operator variable assignment c#

C# Tutorial

C# examples, c# short hand if...else, short hand if...else (ternary operator).

There is also a short-hand if else, which is known as the ternary operator because it consists of three operands. It can be used to replace multiple lines of code with a single line. It is often used to replace simple if else statements:

Instead of writing:

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Mastering Conditional Variable Assignment in C#

Conditional assignment in C# allows developers to assign values to variables based on certain conditions. This powerful feature enhances code readability and simplifies logic flow in programming. In this blog post, we will explore various techniques and best practices for conditional variable assignment in C#.

Basic Conditional Assignment

The most common way to conditionally assign a value to a variable in C# is by using the ternary operator ? . Here's a simple example:

In this code snippet, the message variable is assigned the value based on the condition (age >= 18) . If the condition is true, the message will be "You are an adult"; otherwise, it will be "You are a minor".

Null-Coalescing Operator

Another useful technique for conditional assignment in C# is the null-coalescing operator ?? . It provides a concise way to assign a default value if a variable is null . Here's an example:

In this example, the displayName variable is assigned the value of name if name is not null . Otherwise, it is assigned the default value "Guest".

Conditional Assignment with If-Else

For more complex conditions, using an if-else statement for conditional assignment can be beneficial. Here's an example:

This code snippet demonstrates assigning a grade based on the score variable using an if-else ladder.

Switch Statement for Conditional Assignment

In scenarios where there are multiple conditions to check, using a switch statement for conditional assignment can improve code readability. Here's an example:

By utilizing the switch statement, you can handle multiple conditions elegantly for variable assignment.

Mastering conditional variable assignment in C# is essential for writing clean and efficient code. By understanding and applying various techniques like the ternary operator, null-coalescing operator, if-else statements, and switch statements, you can enhance your coding skills and create more robust applications.

Experiment with these examples and explore further possibilities to leverage conditional assignment effectively in your C# projects. Happy coding!

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Introduction

Getting Started with C#
Your First C# Program
C# Comments
C# Variables and (Primitive) Data Types

C# Operators

C# Basic Input and Output
C# Expressions, Statements and Blocks

Flow Control

C# if, if...else, if...else if and Nested if Statement

C# ternary (? :) Operator

C# for loop
C# while and do...while loop
Nested Loops in C#: for, while, do-while
C# break Statement
C# continue Statement

C# switch Statement

C# Multidimensional Array
C# Jagged Array
C# foreach loop
C# Class and Object
C# Access Modifiers
C# Variable Scope
C# Constructor
C# this Keyword
C# Destructor
C# static Keyword
C# Inheritance
C# abstract class and method
C# Nested Class
C# Partial Class and Partial Method
C# sealed class and method
C# interface
C# Polymorphism
C# Method Overloading
C# Constructor Overloading

Exception Handling

C# Exception and Its Types
C# Exception Handling
C# Collections
C# ArrayList
C# SortedList
C# Hashtable
C# Dictionary
C# Recursion
C# Lambda Expression
C# Anonymous Types
C# Generics
C# Iterators
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C# Indexers
C# Regular Expressions

Additional Topics

C# Keywords and Identifiers
C# Type Conversion

C# Operator Precedence and Associativity

C# Bitwise and Bit Shift Operators
C# using Directive
C# Preprocessor Directives
Namespaces in C# Programming
C# Nullable Types
C# yield keyword
C# Reflection

C# Tutorials

C# Expressions, Statements and Blocks (With Examples)

Ternary operator are a substitute for if...else statement. So before you move any further in this tutorial, go through C# if...else statement (if you haven't).

The syntax of ternary operator is:

The ternary operator works as follows:

If the expression stated by Condition is true , the result of Expression1 is returned by the ternary operator.
If it is false , the result of Expression2 is returned.

For example, we can replace the following code

Why is it called ternary operator?

This operator takes 3 operand , hence called ternary operator.

Example 1: C# Ternary Operator

When we run the program, the output will be:

In the above program, 2 is assigned to a variable number . Then, the ternary operator is used to check if number is even or not.

Since, 2 is even, the expression ( number % 2 == 0 ) returns true . We can also use ternary operator to return numbers, strings and characters.

Instead of storing the return value in variable isEven , we can directly print the value returned by ternary operator as,

When to use ternary operator?

Ternary operator can be used to replace multi lines of code with a single line. However, we shouldn't overuse it.

For example, we can replace the following if..else if code

with a single line of code

As we can see, the use of ternary operator may decrease the length of code but it makes us difficult to understand the logic of the code.

Hence, it's better to only use ternary operator to replace simple if else statements.

Ternary Operator Introduction
Example: C# Ternary operator
When to use it?

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