If Statement

If-statements or also if-else-statements make up an essential part of every program. These statements check if a specified condition is met and react accordingly. If the specified condition isn’t met, the program will execute a different code, which may be specified inside an else code block.

It is also possible to check multiple different conditions by using else if blocks.

Syntax

They must have a single starting if, may have multiple extending else if branches and can have a single ending else branch, which is evaluated if the previous condition were all false.

if (CONDITION) STATEMENT;
// Required
else if (CONDITION) STATEMENT;
// Optional - No limit for the amount of 'else if' branches
else STATEMENT; // Optional

Examples

// Simple comparison of a value
var var1: num = 4;
if (var1 == 4) {
  call print("It's 4");
} else {
  call print("It's not 4");
}

// Simple else-if branch chaining
var var2: num = 5;
if (var2 < 5) {
  call print("It's less than 5");
} else if (var2 == 5) {
  call print("It's 5");
} else {
  call print("It's more than 5");
}

// Simple else-if branch chaining without braces
var var3: num = 123;
if (var3 < 123)
  call print("It's less than 123");
else if (var3 == 123) {
  call print("It's 123");
else
  call print("It's more than 123");

// Nested if-statement
var var4: str = "Hello!";
if (var4 == "Hello")
  call print("It says Hello. Hello back :)");
else
  if (var4 == "Hello!")
    call print("It says Hello! Hello back!");
  else
    call print(f"It says: {var4}");