select()

Type Function
Library (globals)
Return value (varies)
Revision Current Public Release (2018.3326)
Keywords select

Overview

If index is a number, select() returns all arguments after argument number index. Otherwise, index must be the string #, and select() returns the total number of extra arguments it received.

Syntax

select( index, ... )
index (required)

Number or String. This parameter can either be a number, in which case select() returns all arguments after argument number index. Otherwise, index must be the string #, and select() returns the total number of extra arguments it received.

Examples

-- This example demonstrates how to access individual return values
-- from a function that returns multiple values
 
print(string.find("hello hello", " hel"))         --> 6  9
print(select(1, string.find("hello hello", " hel"))) --> 6
print(select(2, string.find("hello hello", " hel"))) --> 9
-- This example prints the total number of extra arguments passed to the `select()` function
print(select("#", a,b,c)) --> 3