Twig ternary operator, Shorthand if-then-else

php twig conditional-operator

{{ (ability.id in company_abilities) ? 'selected' : '' }}

The ternary operator is documented under 'other operators'

php twig conditional-operator

You can use shorthand syntax as of Twig 1.12.0

{{ foo ?: 'no' }} is the same as {{ foo ? foo : 'no' }}{{ foo ? 'yes' }} is the same as {{ foo ? 'yes' : '' }}

php twig conditional-operator

Support for the extended ternary operator was added in Twig 1.12.0.

If foo echo yes else echo no:
```
{{ foo ? 'yes' : 'no' }}
```
If foo echo it, else echo no:
```
{{ foo ?: 'no' }}
```
or
```
{{ foo ? foo : 'no' }}
```
If foo echo yes else echo nothing:
```
{{ foo ? 'yes' }}
```
or
```
{{ foo ? 'yes' : '' }}
```
Returns the value of foo if it is defined and not null, no otherwise:
```
{{ foo ?? 'no' }}
```
Returns the value of foo if it is defined (empty values also count), no otherwise:
```
{{ foo|default('no') }}
```

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