The JSON file format is used for marshalling data in lots of different applications. If you are new to an application, and don’t know the data, it might be hard to visually parse the JSON and understand what you are seeing. The jq command line utility can help make it easier to scope in to a section of the file. This is a starting point.
I want to shoot a ray. And not just parallel to one of the axis of the cartesion coordinate system. I want to look in a direction and shoot a ray in that direction. I want to be able to shoot aray in any direction and walk on it. Like certain ice based superheros. And now I can do that.
If you change the public signature of an API, or add a new API in Keystone, there is a good chance the Tests that confirm JSON home layout will break. And that test is fairly unfriendly: It compares a JSON doc with another JSON doc, and spews out the entirety of both JSON docs, without telling you which section breaks. Here is how I deal with it:
Jill Jubinski is a well known and respected community leader in OpenStack. When she says something, especially about recruiting, it is worth listening to her, and evaluating what she says. When she tweeted:
While I find the ‘show some code ur proud of’ stance, its like, what if someone doesnt want to code outside of work? That has to be ok too.
my response came off as a contradicting her. It was:
nothing to show would be suspect. If you hate to code, no paycheck would be high enough to make you do it well.
Which goes to show that terseness is a demanding constraint; I did not adequately state what I was trying to state in my attempt to limit it to a single tweet. And of course, that meant it became a discussion back and forth.
Let me try to be a little more nuanced and fair here. What Jill says is spot on: it should be 100% OK for a programmer, and a good one, to not have anything that they are capable of showing prior to an interview. I, myself, would have fallen into that category earlier in my career.
Yesterday, someone asked me about inherited role assignments in Keystone projects. Here is what we worked out.
Minecraft is a land of Cubes. And yet, in this blockland, it turns out the circle is a very powerful tool. Using the basics of trigonometry, we can build all sorts of things.
Minecraft uses the Cartesian coordinate system to locate and display blocks. That means that every block location in a Minecraft universe can be described using three values: X, Y, and Z. Even the player’s avatar “Steve” has a position recorded this way. If you type the F3 key, you can see a bunch of text on the screen. Buried in there somewhere are the 3 values for Steve’s position.