Module:Yesno/doc

Module:Yesno normalizes boolean-like inputs from MediaWiki frame arguments into explicit Lua booleans (true or false) or a fallback value.

Usage

Syntax

local yesno = require('Module:Yesno')
local bool = yesno(value, default)

Behavior Matrix

Input Type	Recognized Values	Return Value
Boolean	true / false	Pass-through boolean
Truthy Strings	"yes", "y", "true", "t", "1", "on" (Case-insensitive, leading/trailing spaces ignored)	true
Falsy Strings	"no", "n", "false", "f", "0", "off" (Case-insensitive, leading/trailing spaces ignored)	false
Numbers	1 / 0	true / false
Unrecognized / Nil	Any other string, number, table, or nil	default parameter value (or nil if omitted)

Examples

local yesno = require('Module:Yesno')

yesno('yes')           -- returns true
yesno('  OFF  ')       -- returns false
yesno('unknown')       -- returns nil
yesno('unknown', true) -- returns true
yesno(nil, false)      -- returns false