mirror of
https://github.com/luau-lang/luau.git
synced 2025-05-04 10:33:46 +01:00
33 lines
984 B
Markdown
33 lines
984 B
Markdown
---
|
|
layout: single
|
|
title: "String Interpolation"
|
|
---
|
|
|
|
String interpolation is the new syntax introduced to Luau that allows you to create a string literal with expressions inside of that string literal.
|
|
|
|
In short, it's a safer and more ergonomic alternative over `string.format`.
|
|
|
|
Here's a quick example of a string interpolation:
|
|
|
|
```lua
|
|
local combos = {2, 7, 1, 8, 5}
|
|
print(`The lock combination is {table.concat(combos)}. Again, {table.concat(combos, ", ")}.`)
|
|
--> The lock combination is 27185. Again, 2, 7, 1, 8, 5.
|
|
```
|
|
|
|
String interpolation also composes well with `__tostring` metamethod.
|
|
|
|
```lua
|
|
local balance = setmetatable({ value = 500 }, {
|
|
__tostring = function(self)
|
|
return "$" .. tostring(self.value)
|
|
end
|
|
})
|
|
|
|
print(`You have {balance}!`)
|
|
--> You have $500!
|
|
```
|
|
|
|
To find out more details about this feature, check out [Luau Syntax page](syntax).
|
|
|
|
This is also the first major language feature implemented by a contribution from the open-source community!
|