initial

joplin notion extension/Web Development/Extras/jekyll/liquid.md

@@ -0,0 +1,47 @@
+liquid
+
+A templating language have 3 components ie objects, tags and filter
+1. objects are for values of variables. `{{page.title}}` will display value of `page.title`
+2. tags : for control flow
+```html
+{% if page.show_sidebar %}
+  <div class="sidebar">
+    sidebar content
+  </div>
+{% endif %}
+```
+3. fllter : to change output
+  eg: `{{ "hi" | capitalize }}` will display `Hi`
+    &nbsp;
+  
+  **Front matter**
+  Front matter is a snippet of YAML placed between two triple-dashed lines at the start of a file.
+- front matter variables
+	```
+	---
+	my_number: 5
+	---
+	```
+	calling value front end matter variable
+	```
+	{{ page.my_number }}
+	```
+ example
+ ```html
+---
+# front matter tells Jekyll to process Liquid
+title: home
+---
+
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="utf-8">
+    <title>{{ page.title | capitalize  }}</title>
+  </head>
+  <body>
+    <h1>{{ "Hello World!" | downcase }}</h1>
+  </body>
+</html>
+
+```