What is a jinja2 macro?
Macros are similar to functions in many programming languages. We use them to encapsulate logic used to perform repeatable actions. Macros can take arguments or be used without them. Inside of macros we can use any of the Jinja features and constructs. Result of running macro is some text.
Which three features are included in jinja2 template?
Some of the features of Jinja are:
- sandboxed execution.
- automatic HTML escaping to prevent cross-site scripting (XSS) attacks.
- template inheritance.
- compiles down to the optimal Python code just-in-time.
- optional ahead-of-time template compilation.
What are the delimiters used in the jinja2 template give examples?
The default Jinja delimiters are configured as follows:
- {% %} for Statements.
- {{ }} for Expressions to print to the template output.
- {# #} for Comments not included in the template output.
- # ## for Line Statements.
How do you declare a variable in jinja2?
“declare variable in jinja2” Code Answer’s
- {% with my_variable=”my value” %}
- {{my_variable}}
- {% endwith %}
-
- {# or #}
- {% firstof “my value” as my_variable %}
- {{my_variable}}
What is Jinja2 used for?
What is Jinja 2? Jinja2 is a modern day templating language for Python developers. It was made after Django’s template. It is used to create HTML, XML or other markup formats that are returned to the user via an HTTP request.
What is the main advantage purpose of using Jinja2 templates within Ansible?
Jinja2 templates are simple template files that store variables that can change from time to time. When Playbooks are executed, these variables get replaced by actual values defined in Ansible Playbooks. This way, templating offers an efficient and flexible solution to create or alter configuration file with ease.
Does Jinja2 work with Python 3?
Jinja works with Python 2.7. The last release which supported Python 2.6 and 3.3 was Jinja 2.10. If you wish to use the PackageLoader class, you will also need setuptools or distribute installed at runtime.
How do you comment on Jinja2?
#} or ## comment .
- {# .. #} is only meant for disabling part of a template or adding comments outside of other Jinja2 syntax.
- # statement is the equivalent of {% statement %} , if line statements are enabled and so configured.
- ## comment only works if line statements are enabled, at which point it regarded as a comment.
Is Jinja2 good?
Why is Jinja2 useful? Jinja2 is useful because it has consistent template tag syntax and the project is cleanly extracted as an independent open source project so it can be used as a dependency by other code libraries.
Who uses Jinja2?
Jinja2 is a modern day templating language for Python developers. It was made after Django’s template. It is used to create HTML, XML or other markup formats that are returned to the user via an HTTP request. You can read more here.
Is Jinja2 a Python?
Jinja, also commonly referred to as “Jinja2” to specify the newest release version, is a Python template engine used to create HTML, XML or other markup formats that are returned to the user via an HTTP response.
Which is safe to use in Jinja2 function?
Jinja2 functions (macros, super, self.BLOCKNAME) always return template data that is marked as safe. String literals in templates with automatic escaping are considered unsafe because native Python strings ( str, unicode, basestring) are not markupsafe.Markup strings with an __html__ attribute.
What can you do with macros in Jinja?
Macros can take arguments or be used without them. Inside of macros we can use any of the Jinja features and constructs. Result of running macro is some text. You can essentially treat macro as one big evaluation statement that also allows parametrization.
What is the syntax of a template in Jinja?
A template contains variables and/or expressions, which get replaced with values when a template is rendered; and tags, which control the logic of the template. The template syntax is heavily inspired by Django and Python. Below is a minimal template that illustrates a few basics using the default Jinja configuration.
Which is the most powerful part of Jinja?
The most powerful part of Jinja is template inheritance. Template inheritance allows you to build a base “skeleton” template that contains all the common elements of your site and defines blocks that child templates can override. Sounds complicated but is very basic.
