constants in GoLang Telugu Tutorial
constants are immutable values that are known at compile time and cannot be changed during the execution of a program. Constants are typically used to represent values that are not expected to change, such as mathematical constants, configuration values, or other fixed data.
Constants must be initialized with a constant expression, which means their value must be known at compile time.
Constants cannot be assigned a value at runtime.
Constants can only hold basic types (like numbers, strings, and booleans).
Constants cannot be modified or reassigned after they are declared.
Constants do not use the := short variable declaration syntax;
Numeric Constants: const pi = 3.14159
String Constants: const greeting = “Hello, world!“
Boolean Constants: const isEnabled = true
Typed Constants:
const age int = 30
const name string = “Alice“
Untyped Constants:
const x = 10 // untyped integer constant
const y = 3.14 // untyped floating-point constant
const z = “Hello” // untyped string constant
const flag = true // untyped boolean constant
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