A string is some text within a variable.

Literal text

You enclose a string within single (') or double (") quotes.

You can modify a string with filters just like a variable:

{{"This is literal text"|truncate(7)}}

This is...

Concatenation

You can join multiple strings or variables together with ~ (tilde):

{% set first_name = "Kina" %}
{% set last_name = "Halpue" %}
{% set full_name = first_name ~ " " ~ last_name %}
{{full_name}}

Kina Halpue

Whitespace

One issue with treating all template text as output is that you can get unintended whitespace around your commands.

You can ignore whitespace at the beginning or end of a tag with a dash (-):

This text

{{-" has no leading or trailing whitespace "-}}

in it.

This text has no leading or trailing whitespace in it.