Replace Text

string.gsub returns both the replaced string and the number of replacements.

replace_text.lua

local text = 
local replaced, count = string.gsub(text, ",", "|")

print("text=" .. text)
print("replaced=" .. replaced)
print("count=" .. count)

local text = 
local replaced, count = string.gsub(text, ",", "|")

print("text=" .. text)
print("replaced=" .. replaced)
print("count=" .. count)

local text = 
local replaced, count = string.gsub(text, ",", "|")

print("text=" .. text)
print("replaced=" .. replaced)
print("count=" .. count)

replacement count The second return value from `gsub` is useful when later logic needs to know whether anything changed.