When you find it difficult to write a concise, focused, isolated test, the production code has unhealthy dependencies to loosen, invert, or break.
Here, “concise” means having no irrelevant details; “focused” means failing for only one reason; “isolated” means executing without side effects on other tests.
The git repo of the kata is here: https://github.com/sandromancuso/cleancoders_openchat/
The "starting-point" branch is where both implementations began: https://github.com/sandromancuso/cleancoders_openchat/tree/starting-point
"openchat-outside-in" branch captures the tomato by tomato history of the London approach."openchat-unclebob" branch captures the tomato by tomato history of the Chicago approach.
In JavaScript there is NO concept of Class.
Everything is an Object.
Inheritance between objects is achieved with a mechanism known as Prototypal Inheritance.
We can create Objects and then link them together OLOO (Objects-Linked-to-Other-Objects).
// it's NOT an extension function
// it takes the receiver and a lambda with the same receiver
// it returns the result of the lambda on the implicit receiver
inline fun <T, R> with(receiver: T, block: T.() -> R): R {
return receiver.block()
}
with ("ciao") {
length + 1
Write the simplest Kotlin file, and name it Main.kt:
fun main(args: Array<String>) {
println("Hello world!")
}Then compile the Kotlin file with kotlinc, which runs the Kotlin compiler
git checkout new-feature # Go to the feature branch named "new-feature"
git rebase master
# Now your feature have all the commits from master!
My train number is 2134, and its id is S07113 (to find that id, you've to inspect the page http://www.viaggiatreno.it/viaggiatrenonew/index.jsp with a network console).
~ watch -d -n 60 http "http://www.viaggiatreno.it/viaggiatrenonew/resteasy/viaggiatreno/andamentoTreno/S07113/2134 | jq '.ritardo'"PS the FS frontend is http://www.viaggiatreno.it/viaggiatrenonew/index.jsp
Continued from I'm learning vim. Here's how I'm doing it, by Chris Geihsler
I've committed to learning vim to become more productive without the crutch of an expensive tool and to decouple myself from a specific OS.
Here's what I've done so far:
A class plays two roles in an OO program: