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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
This test is broken right out of the box…
— FAIL: TestAgent (7.82s)
agent_test.go:77:
Error Trace: agent_test.go:77
agent_test.go:...
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Title: Hands-on Rust: question about get_component (page 295)
(feel free to respond. “You dug you’re own hole… good luck”)
I have somet...
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Hi @Margaret ,
On page VII the book tells us the example and snippets will be all using Elixir version 1.11
But on page 3 almost the en...
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Hi! I know not the intentions behind this narrative when called, on page XI:
mount() |> handle_event() |> render()
but the correc...
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The generated iex result below should list products instead of product for the metadata. (page 67)
iex> product = %Product{}
%Pento....
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A Common-Sense Guide to Data Structures and Algorithms, Second Edition by Jay Wengrow @jaywengrow
Hi,
I have the paperback version of t...
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When running the program in chapter 8, “Implementing Combat”, the printout Health before attack was never printed so I assumed something ...
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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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Docker-Machine became part of the Docker Toolbox, which was deprecated in 2020, long after Docker Desktop supported Docker Engine nativel...
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Getting an error when installing the dependencies at the start of this chapter:
could not compile dependency :exla, "mix compile" failed...
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If it’s a mechanical keyboard, which switches do you have?
Would you recommend it? Why?
What will your next keyboard be?
Pics always w...
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Brace yourself for a fun challenge: build a photorealistic 3D renderer from scratch! In just a couple of weeks, build a ray tracer that r...
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Design and develop sophisticated 2D games that are as much fun to make as they are to play. From particle effects and pathfinding to soci...
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Think Again 50% Off Sale »
The theme of this sale is new perspectives on familiar topics.
Enter coupon code ThinkAgain2021 at checkout t...
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A few weeks ago I started using Warp a terminal written in rust. Though in it’s current state of development there are a few caveats (tab...
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This is going to be a long an frequently posted thread.
While talking to a friend of mine who has taken data structure and algorithm cou...
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Author Spotlight
Jamis Buck
@jamis
This month, we have the pleasure of spotlighting author Jamis Buck, who has written Mazes for Prog...
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Author Spotlight
Mike Riley
@mriley
This month, we turn the spotlight on Mike Riley, author of Portable Python Projects. Mike’s book ...
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Author Spotlight:
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@PJUllrich
Data is at the core of every business, but it is useless if nobody can access and analyze ...
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Will Swifties’ war on AI fakes spark a deepfake porn reckoning?
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