How to remove spaces from a string in Lua?

Question

I want to remove all spaces from a string in Lua. This is what I have tried: ``` string.gsub(str, "", "") string.gsub(str, "% ", "") string.gsub(str, "%s*", "") ``` This does not seem to work. How can I remove all of the spaces?

Accepted Answer

It works, you just have to assign the actual result/return value. Use one of the following variations:

```
str = str:gsub("%s+", "")
str = string.gsub(str, "%s+", "")
```

I use `%s+` as there's no point in replacing an empty match (i.e. there's no space). This just doesn't make any sense, so I look for at least one space character (using the `+` quantifier).

How to remove spaces from a string in Lua?

Solution

Problem