Search icon CANCEL
Subscription
0
Cart icon
Your Cart (0 item)
Close icon
You have no products in your basket yet
Save more on your purchases now! discount-offer-chevron-icon
Savings automatically calculated. No voucher code required.
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Conferences
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
Web Development with Jade

You're reading from   Web Development with Jade Knowing Jade makes life simpler and more productive for web developers, and this book will teach you the language concisely and thoroughly using lots of practical examples and best practices for a solid grounding.

Arrow left icon
Product type Paperback
Published in Mar 2014
Publisher
ISBN-13 9781783286355
Length 80 pages
Edition Edition
Tools
Arrow right icon
Author (1):
Arrow left icon
Sean Lang Sean Lang
Author Profile Icon Sean Lang
Sean Lang
Arrow right icon
View More author details
Toc

Interpolation everywhere!


Now, how about actually putting the data into something? For this, we can use interpolation:

Jade

HTML

p Jade says #{some_text}!
<p>Jade says Hello World!</p>

You just wrap the variable that you want to use in between #{ and }, and everything in the curly braces is evaluated as code, rather than text. This can be used pretty much anywhere that text can. But what if we don't just want to insert a variable, but want to do something more?

Jade

HTML

p 2 times 3 is #{2 * 3}
<p>2 times 3 is 6</p>

Yep, interpolation can contain full expressions too—pretty much any code you would want to put directly inline. But wait, there's more!

It works in attributes:

Jade

HTML

- base_url = "http://slang.cx"
a(href="#{base_url}/about")
<a href="http://slang.cx/about"></a>

It even works in text blocks:

Jade

HTML

- i = ['proident', 'dreamcatcher', 'ennui', 'Tonx']

pre
   | #{i[0]} #{i[1]}
   | #{i[2]} #{i[3]}
<pre>proident dreamcatcher
ennui Tonx...
lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at $19.99/month. Cancel anytime