Check if a text field is empty twig

{% if content.field|render is not empty %}

Devel Kint hook select alter

Twig |length filter

length¶
New in version 2.3: Support for the __toString() magic method has been added in Twig 2.3.

The length filter returns the number of items of a sequence or mapping, or the length of a string.

For objects that implement the Countable interface, length will use the return value of the count() method.

For objects that implement the __toString() magic method (and not Countable), it will return the length of the string provided by that method.

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{% if users|length > 10 %}
...
{% endif %}

image url in background image views twig

For me the same solution worked during development:

Inside my views-view-fields--slider.html.twig im using your solution successful with twig debug enabled:

{%
set background_image = fields.field_photo.content|striptags|trim
%}

Float, Decimal and Integer

Views overlay cannot save or apply

too many unlabelled custom or fieldset fields

Drupal Add js

D8 Check if image is empty

{% if content.field_name|render is not empty %}
{{ content.field_name }}Foo
{% endif %}

SVG

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