Language Basics

Variables

Kria uses the set keyword to declare and assign variables. Variables are dynamically typed and can hold any value.

Example

set x = 10
set y = 20
set sum = x + y
print(sum)

Variables persist during a session (in the REPL) or throughout a program. There are no special constants or immutable bindings.

Data Types

Kria has 7 primitive types:

• Number — Integers and floats (unified as "number")
• String — Text values with double quotes
• Boolean — true or false
• Null — Represents undefined values
• Array — Mutable ordered collections
• Object — Key-value pairs
• Function — First-class functions and closures

Example

set name = "Kria"
set isActive = true
set value = null
print(name)

Arithmetic Operators

Kria supports standard arithmetic operations on numbers:

Example

set x = 10
set product = x * 20
print(product)
set quotient = 20 / x
print(quotient)

Comparison & Logical Operators

Compare values with relational operators. Combine conditions with logical operators:

Example

set x = 10
set y = 20
if (x < y and y > 15) {
    print("Both conditions true")
}

Type Checking

Use the type() built-in function to check a value's type at runtime:

print(type(42))
print(type("hello"))
print(type(true))
print(type(null))

Returns one of: "number", "string", "boolean", "null", "array", "object", or "function".