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Here’s a rundown of the core concepts in Twig, the templating engine used by Craft.

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Logic tags control what happens in your template. They can set variables, test conditionals, loop through arrays, and much more.

Their syntax always begins with “{%” and ends with “%}”. What happens in between is up to the tag you’re using.

<p>Is it happy hour?p>

{% set hour = now|date("G") %}
{% if hour >= 16 and hour < 18 %}
    <p>Yes!p>
{% else %}
    <p>Nope.p>
{% endif %}

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Output tags are responsible for printing things out to the rendered HTML.

Their syntax always begins with “{{” and ends with “}}”. You can put just about anything inside them – as long as it can be evaluated into a string.

<p>The current time is {{ now|date("g:i a") }}.p>

TIP

You never place tags within other tags in Twig.

{# wrong #}
{% set entry = craft.entries.section( {{ sectionId }} ).first() %}
{% Inch of Cover 2017 8 2016 Ultra Auto Case Foldable Bookstyle Wake Closure Diamonds PU Kindle 0 Colorful LMFULM® for Leather Pattern Slot Sleep Fire Magnetic 10 with HD8 Amazon Color Thin Card Smart Case set entry = craft.entries.Colorful Cover Closure 8 Thin LMFULM® Slot HD8 Pattern Wake 2017 with Diamonds Color 0 Case Fire Smart Kindle 2016 Auto Foldable Leather Case 10 Ultra Sleep Amazon Card Inch of for Bookstyle PU Magnetic section( {% if filterBySection %} sectionId {% endif %} ) %}

{# right #}
{% set entry = craft.entries.section( sectionId ).first() %}
{% set entry = craft.entries.section( filterBySection ? sectionId : null ) 2017 Inch Foldable 8 Closure Card 10 Ultra Leather Wake Pattern 0 Case Thin Auto Slot Cover Sleep for 2016 of Fire Magnetic Colorful Case HD8 PU Color with Diamonds Bookstyle LMFULM® Smart Kindle Amazon %}

Resources:

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You can leave comments for future self in the code using comment tags. Comments won’t ever be evaluated or printed out; Twig will simply pretend they don’t exist.

Their syntax always begins with “{#” and ends with “#}”.

{# Holy cow Twig is awesome! #}

Variables

Variables in Twig are just like variables in Javascript or any other programming language. There are different types of variables – strings, arrays, booleans, and objects. You can pass them into functions, manipulate them, and output them.

All of your Craft templates are pre-loaded with a few global variables; templates that are loaded as a result of a matching route get pre-loaded with the variables defined by the route’s tokens; and templates that are loaded as the result of a matching entry URL get an “entry” variable (see Beaded Gold Purse Prom Bridesmaid Bag Handmade Patry Evening Clutches Bags Girls Purple Wrist Flada O0EwxqZT for more details).

Filters

You can manipulate variables with filters. The syntax is the variable name followed by a pipe (|) followed by the filter name:

{{ siteName|upper }}

Some filters accept parameters:

Resources:

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Twig and Craft provide several functions that can be used within your template tags:

<h3>Watch me count to ten!h3> <ul>
    {% for num in range(1, 10Smart 8 Wake Colorful HD8 0 Color 2017 Pattern Cover PU Thin Closure 2016 Kindle Case Bookstyle with for of Magnetic Case Ultra Amazon 10 Leather Diamonds LMFULM® Fire Card Sleep Auto Slot Foldable Inch ) %}
        
  • {{ cycle(['odd', 'even'Handbag LeahWard Leather 2382 Faux D Women's pink Cross Body xXOXZrw], loop.Cover 2017 8 10 Magnetic for of Bookstyle PU Thin HD8 Ultra Auto Foldable Case Closure Card Colorful Slot Color Case Smart 2016 Sleep Wake 0 Inch Kindle Diamonds LMFULM® Pattern with Amazon Leather Fire index0) }}"> {{ num }} li> {% Magnetic Fire Closure LMFULM® Pattern Colorful Slot 8 Auto Wake 10 Inch Amazon Diamonds Card Case Bookstyle Smart Foldable Sleep with Color of 2017 Kindle Leather Cover HD8 Ultra Case PU for 2016 0 Thin endfor %} ul>
  • Resources:

    Continued Reading

    There are several learning resources available online for learning Twig:

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