If we use the if-else statement for this, there may be a slight delay in performance. This is because the if-else statement always executes the expression at runtime to check whether the condition is met or not. Things would slow down as there were more conditions to review and decisions became complex. It`s interesting as a case study, like „see what you can do“, but I see no reason (read: a real advantage) to use it in a real case, and the disorientation that the reader causes is a big drawback. That is exactly what my example does. Yes, it looks different from most switch statement examples, but it`s really no different – just compare expression to expression The principle of the switch statement is to compare the expression to cases. To have multiple choices like this, we can use the else-if statements to concatenate the additional choices. The current month at the time of publication was 8, which corresponded to one of the memoirs with the „Summer“ season. 4) The break instruction is used inside the switch to terminate a sequence of instructions.

When a break statement is reached, the switch is stopped and the control flow moves to the next line after the switch statement. In C#, we have the ability to use multiple case labels in switch case coonstruction if they need to execute the same code. In this way, if our program finds a match, it executes the following code, since there is no code to execute after the respective case label and there is a pause operator. The switch-case condition works as a sequence of if-else blocks. Whenever the work of our program depends on the value of a variable, we can use the conditional switch statement instead of creating consecutive conditions with if-else blocks. It is used to choose between a list of possibilities. The statement compares a given value to defined constants and performs an action based on the result. To learn more about Switch, you can check it out on the Mozilla Developer Network. See below the code written after the second scenario with Else-if statements. The thing to never forget is that a switch statement is nothing more than a conditional statement that tests whether something is true or false.

This something is a variation of whether the result of evaluating the expression matches a case value. Let`s make sense of this explanation by looking at a better example: the switch statement is a multiple-choice instruction. After you specify the choices and expressions that are relevant for each selection, it searches for and executes the choices until it finds the selection that matches the expression. The if-else and the switch are both the decision statements. Decision statements here mean that the output of the expression decides which statements to execute. The single if statement in C is used to execute code when a condition is true. It is also known as a one-way selection statement. In the case of the `if-else` statement, the `if` block or the `else` block is executed depending on the condition. We need to distinguish between „understanding the language“ and „understanding what the runtime does with it.“ If we confuse them, the latter interpretation would give us carte blanche to use what makes the program work, accusing our colleagues of „not understanding the inner workings.“ I like to point to Duff`s camera and isqrt for a few examples of what this leads; In some cases, justified, but generally avoided.

The SWITCH statement replaces a long if-if scale used to test a list of cases. A switch statement contains one or more case-sensitive labels that are tested against the switch expression. If the expression matches a case, the statements associated with that case are executed. After the above comparison, you can see that the choice of conditional statement depends on the scenario and its complexity. For example, we can select both if-else and switch statements for the second scenario, because we only look at a report, which may not make a difference in performance other than readability. Now, you might think that the if-else and switch statements are quite similar and maybe if-else are easier to use. And you might have your reasons for choosing one over the other. So, before jumping to conclusions, let`s check the differences between if-else and switch statements. 7) Switch statements are limited to integer values only in the verification condition. In case you`re wondering, Dasha is an AI-as-a-service conversational platform that allows you to integrate realistic voice and text conversation capabilities into your apps or products. Start building for free! If you pass a value in the switch statement and then want to apply the condition to that passthrough value and the evaluation statement, you must write the switch statement under a function and pass the parameter in that function, and then pass true in the switch expression, as in the following example.

The switch statement evaluates an expression and executes code as a result of a corresponding case. The basic syntax is similar to that of an if statement. It is always written with switch() {}, with parentheses containing the expression to test and braces containing the possible code to execute. Note: Sometimes, if the default is not placed at the end of the switcher, we have to use the break statement with the default case. 6) Nesting switch instructions is allowed, which means you can have switch instructions in another switch. However, nested switching instructions should be avoided as this makes the program more complex and less readable. This is not necessarily true; Compilers can always optimize if statements in jump tables if they are simple enough.