util.table.concat

Syntax

local result = util.table.concat(
    input,
    separator = "",
    start_at = 1,
    end_at = util.table.len(input)
)

Parameters

Type	Name	Description
`table`	input	Table to concatenate
`string`	separator	String to insert between concatenated elements
`int`	start_at	Position where concatenation starts
`int`	end_at	Position where concatenation ends

Returns

Type	Name	Description
`string`	result	Concatenated string

Examples

Concatenate all elements without a separator

local t = {"hello", "world", "lua"}
local result = util.table.concat(t)

core.engine.print("info", result) -- 'helloworldlua'

Concatenate elements with a separator

local t = {"apple", "banana", "orange"}
local result = util.table.concat(t, ", ")

core.engine.print("info", result) -- 'apple, banana, orange'

Concatenate elements with a space separator

local words = {"Hello", "World"}
local result = util.table.concat(words, " ")

core.engine.print("info", result) -- 'Hello World'

Concatenate a subset of the table

local t = {"a", "b", "c", "d", "e"}
local result = util.table.concat(t, "-", 2, 4)

core.engine.print("info", result) -- 'b-c-d'

Build a CSV line from a table

local data = {"John", "25", "Developer"}
local csv = util.table.concat(data, ",")

core.engine.print("info", csv) -- 'John,25,Developer'

Build a file path from parts

local parts = {"home", "user", "documents"}
local path = "/" .. util.table.concat(parts, "/")

core.engine.print("info", path) -- '/home/user/documents'

Syntax

Parameters

Returns

Examples

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