January 2014
Intermediate to advanced
232 pages
5h 11m
English
Content preview from Web Development with ClojureBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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The Read-Evaluate-Print Loop
Another big aspect of working in Clojure is the read-evaluate-print loop (REPL). In many languages you write the code, then run the entire program to see what it does. In Clojure most development is done interactively using the REPL. In this mode we can see each piece of code we write in action as soon as it’s written.
In nontrivial applications it’s often necessary to build up a particular state before you can add more functionality. For example, a user has to log in and query some data from a back end, then you need to write functions to format and display this data. With a REPL you can get the application to the state where the data is loaded and then write the display logic interactively without having to reload ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.