What is the difference between Go's if-else and switch statements?

Question

Jayant Kumar · Accepted Answer

In Go, both the if-else and switch statements are used for conditional branching in a program, but they differ in their syntax and usage.
The if-else statement is used to execute a block of code if a given condition is true, and execute another block of code if the condition is false. The syntax of an if-else statement is as follows:
if condition {
    // code to execute if condition is true
} else {
    // code to execute if condition is false
}

Here, condition is any expression that can be evaluated to a boolean value (true or false). If condition is true, the code block inside the if statement is executed, otherwise the code block inside the else statement is executed.
The switch statement, on the other hand, is used to evaluate a given expression against multiple possible values, and execute different blocks of code depending on which value matches. The syntax of a switch statement is as follows:
switch expression {
case value1:
    // code to execute if expression == value1
case value2:
    // code to execute if expression == value2
default:
    // code to execute if expression does not match any case
}

Here, expression is any expression that can be evaluated to a value that can be compared to the value1, value2, etc. Each case represents a possible value that expression can take, and the code block inside the case is executed if expression matches the corresponding value. The default case is executed if expression does not match any of the case values.
In contrast to if-else, which allows for any boolean expression as a condition, switch statements can only be used with expressions that evaluate to values of a fixed set of types: integers, floating-point numbers, strings, characters, and booleans. Additionally, switch statements are often more concise and readable than long chains of if-else statements, especially when there are many possible values to check against.
In summary, if-else statements are used for simple conditional branching based on a boolean expression, while switch statements are used for more complex branching based on a given expression that can take on multiple values.

What is the difference between Go's if-else and switch statements?

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What is the difference between Go's if-else and switch statements?

Jayant Kumar @jayantkumar314

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