dpb
Web Development with Clojure, Third Edition: p87: still need to create and pass the error atom
At the bottom of p.87, to finish things off, we still need to update the function message-form to define the errors atom -
errors (r/atom nil)
and pass it as a parameter where we are using send-message! as our :on-click handler:
:on-click #(send-message! fields errors)Popular Pragmatic Bookshelf topics
I thought that there might be interest in using the book with Rails 6.1 and Ruby 2.7.2. I’ll note what I needed to do differently here.
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On the page xv there is an instruction to run bin/setup from the main folder. I downloaded the source code today (12/03/21) and can’t see...
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Unknown flag: --go_opt
libprotoc 3.12.3
MacOS 11.3.1
Googling ...
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Hey there,
I’m enjoying this book and have learned a few things alredayd. However, in Chapter 4 I believe we are meant to see the “>...
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Hi, I’ve got a question about the implementation of PubSub when using a Phoenix.Socket.Transport behaviour rather than channels.
Before ...
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@mfazio23
I’m following the indications of the book and arriver ad chapter 10, but the app cannot be compiled due to an error in the Bas...
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@parrt
In the context of Chapter 4.3, the grammar Java.g4, meant to parse Java 6 compilation units, no longer passes ANTLR (currently 4....
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Hello faithful readers! If you have tried to follow along in the book, you are asked to start up the dev environment via dx/build and ar...
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From page 13:
On Python 3.7, you can install the libraries with pip by running these commands inside a Python venv using Visual Studio ...
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Inspired by this post from @Carter, which languages, frameworks or other tech or tools do you think is killing it right now? :upside_down...
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Hello content creators! Happy new year. What tech topics do you think will be the focus of 2021? My vote for one topic is ethics in tech...
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Small essay with thoughts on macOS vs. Linux:
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In case anyone else is wondering why Ruby 3 doesn’t show when you do asdf list-all ruby :man_facepalming: do this first:
asdf plugin-upd...
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Seems like a lot of people caught it - just wondered whether any of you did?
As far as I know I didn’t, but it wouldn’t surprise me if I...
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Hello everyone! This thread is to tell you about what authors from The Pragmatic Bookshelf are writing on Medium.
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Author Spotlight:
David Bryant Copeland
@davetron5000
We’re so happy to bring you another Author Spotlight, a series where we sit dow...
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I have always used antique keyboards like Cherry MX 1800 or Cherry MX 8100 and almost always have modified the switches in some way, like...
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