How to combine two string in twig?

Question

I want to do something like this:

{% set c=a+b %}

Where a and b are strings.
How can I do it?

Answer 1

You can use:

{{ "Hello " ~ name ~ "!" }}

Answer 2

Use the "~" operator. This will concatenate your two strings. The "+" operator cannot be used to combine strings.

You would get this:

{% set c=a~b %}

More info: The "+" operator: Adds two objects together (the operands are casted to numbers).

Answer 3

The way to do it is:

{% set c = a ~ b %}

Answer 4

A clearer example for the {% block page %}...{% endblock %}:

{% block page %}
    {% set page = page | merge({
    "title"       : branchName,
    "description" : "This description has "~branchName~" as its title"
    }) %}
    {{ parent() }}
{% endblock %}

A clearer example for the {% block content %}...{% endblock %}:

{% block content %}
    This is just a sample string for {{ branchName }} that needs no concatenation
{% endblock %}