Control Flow - Soli MVC Documentation

If/Else Statements

if / else / else if

Conditional branching statements.

let age = 18;

// Simple if
if (age >= 18) {
    print("Adult");
}

// If-else
let score = 75;
if (score >= 60) {
    print("Pass");
} else {
    print("Fail");
}

// Else-if chain
let grade = 85;
let letter;
if (grade >= 90) {
    letter = "A";
} else if (grade >= 80) {
    letter = "B";
} else if (grade >= 70) {
    letter = "C";
} else if (grade >= 60) {
    letter = "D";
} else {
    letter = "F";
}
print(letter);  // "B"

While Loops

while

Repeats while a condition is true.

let i = 0;
while (i < 5) {
    print("Count: " + str(i));
    i = i + 1;
}
// Output: Count: 0, 1, 2, 3, 4

For Loops

for ... in

Iterates over collections or ranges.

// Iterate over array
let fruits = ["apple", "banana", "cherry"];
for (fruit in fruits) {
    print(fruit);
}

// Iterate with range
for (i in range(0, 5)) {
    print(i);  // 0, 1, 2, 3, 4
}

// Range with step
for (i in range(0, 10, 2)) {
    print(i);  // 0, 2, 4, 6, 8
}

// Nested loops
for (i in range(1, 4)) {
    for (j in range(1, 4)) {
        print(str(i) + " x " + str(j) + " = " + str(i * j));
    }
}

Postfix Conditionals

expression if / unless

Ruby-style postfix conditionals for concise one-liners.

let x = 10;
print("big") if (x > 5);

let y = 3;
print("small") unless (y > 5);

let status = "active";
print("Welcome!") if (status == "active");
print("Account locked") unless (status != "banned");

Ternary Operator

condition ? true_value : false_value

Inline conditional expression.

let x = 10;
let size = x > 5 ? "large" : "small";
print(size);  // "large"

// Nested ternary
let grade = 85;
let letter = grade >= 90 ? "A"
             : grade >= 80 ? "B"
             : grade >= 70 ? "C"
             : grade >= 60 ? "D"
             : "F";
print(letter);  // "B"

Break and Continue

break

Exits the current loop immediately.

continue

Skips to the next iteration of the loop.

let numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
let sum = 0;
for (n in numbers) {
    if (n % 2 == 0) {
        continue;  // Skip even numbers
    }
    if (n > 7) {
        break;  // Stop at first number > 7
    }
    sum = sum + n;
}
print("Sum of odd numbers < 7: " + str(sum));  // 1+3+5+7 = 16