Chapter05 | Process Tracker | Stream Processing library

There's a great Xamarin.Forms sample project titled Empirical Font Size that calculates the maximum possible font size for a Label within its containing view. It takes the label in question, uses VisualElement.Measure() to get some size requests for the label based on its properties, and compares the requested sizes to the container's size to see if the label will fit with that font size. It recalculates until it finds the best fit. It works great, but I want to modify it to do more.

Unfortunately, I've hit some nasty roadblocks in my modifications, and I'm not sure if they're more C# or Xamarin related. Here's what I'd like to do.

• Extract the calculations into their own function for use anywhere. -> The original doesn't do this. This bit's actually already done, but the following goals aren't working so it's good to bring this up as the starting point.
• (FOCUS HERE) Avoid using the original label data in the function. (Make a copy.) -> I'm adding some features that require me to actively change the label text data during sizing calculations, but modifying the label I'm sizing can cause issues (not always with the sizing, but in other ways). I need a way to duplicate the label for font sizing in order to protect the original data. (More on what I've tried below).
• Abstract the function to allow sizing of other views. -> Right now, this only calculates max label font sizes. If possible, I'd like to support auto font sizing for other views like picker, entry, etc. Food for thought while figuring out #2.

Goal #2 is where I'm having problems. I can't find a way to duplicate a label and then perform sizing calculations on the temporary copy. Here's what I've tried and how each attempt has failed.

• Make a shallow copy. (e.g. Label copyLabel = origLabel;) -> As expected, this doesn't work because the new label copy is still referencing the same original label data in memory. So if I set copyLabel.Text = "hello", then origLabel.Text will also change to "hello". Not good.
• JSON copy -> I've seen recommendations to use JSON converters to serialize and then deserialize a View in order to do a quick deep copy, but I got an exception when I tried this. Something about a self-referencing loop on the label's children.(Do labels even have children??)
• ICloneable -> I'll be running this function in a static class, so I can't do this. It might not matter because of the next attempt, though.
• Make a new Label object and copy some values. -> This almost seems to work, but the catch here is the VisualElement.Measure() calculation. The new label is missing something required for the calculation to work properly, and I don't know what that is.

For any of these to work, I'd need to copy the label, immediately perform calculations on the copy, and apply the resulting font size to the original. Then the copy disappears. Poof! Unfortunately, any copy I make results in different calculations, so this is where I'm currently stuck.

Someone mentioned elsewhere that maybe the sizing doesn't work because the new label isn't part of a layout and thus can't be sized, but they didn't explain so I don't understand what they were getting at.

To see what works and what doesn't, here's a small Xamarin sample project with a modified version of the Empirical Font Size project. It's a simple A/B test. Two labels with the same text are sized by two near identical functions - one that uses the original label and one that tries to use a copy. They should fill the top and bottom halves of the provided stack layout, but the copy doesn't work. I'd like help making that work.

MODIFIED SAMPLE PROJECT: https://drive.google.com/file/d/1mWxE3p6u53jkIdaIEFVFnkI7BC-kfske/view?usp=sharing

im learning java via making Android App and cant fix Sync Error "Failed to resolve: androidx.appcompat:1.1.0:"

project build file here

I am reading "Kubernetes in Action" and trying samples from the book. I have created a pod:

I am working on linux from scratch and I am at section 5.6 linux-5.5.3 API Headers. I was able to extract the tar, cd into the new directory, and make. At this point I am inside the linux-5.5.3 directory. The command I am having trouble with is this:

I learn qt from Hands On Embedded Programming with Qt book.

I don't understand why I can add Inheritance m_tempSensor(id) with id argument when TemperatureSensorIF constructor not expect any argument, and why as argument I give pointer to "TemperatureSensorIF."

Link to full code:

https://github.com/PacktPublishing/Hands-On-Embedded-Programming-with-Qt/blob/master/Chapter05/BigProject/MainWindow.cpp

There is something like that:

So currently I have an app that looks great on my device, what I see but on another device It looked like this. Both devices are android and I have used the preset FontSize's (micro, small, default, large).

I have used a variation of this but I cannot get it to work corrently, It comes out like this. I actually find that if I divide the result by 2 it actually gives a decent result but I want to make sure I am not doing anything fundamentally wrong or if there is a much simpler way!

Here is my xaml label, each are in a frame in a grid set with each row 1/5th of the space given.

I'm working through chapter 5.3 of Kubernetes In Action by Marko Luska. I'm creating a nodeport service from the following file:

I'm Learning data structure with javascript

and my focus now on how to implement deque?

Edite: from comments below I get useful directions on how to implement deque based array. Is there a direction how to implement deque based object using class ?

I get understand some points like I need :

• addFront()
• removeFront()
• peekFront()

• addBack()
• removeBack()
• peekBack()

but I'm confused about some points :

• how many pointers I need ? at least I know from queue I need two(head-tail) pointer but not sure if I need more in deque

• which data type in javascript convenient in this case as a base? I saw some tutors in youtube talking about circular array for example which unknown for me in JS.

edite2:

I was following a book called: learning javascript data structures and algorithms 3rd edition

in chapter5 of this book the author started to implement Deque based on object only and some variables

but I didn't understand how he did that because the code encrypted but I can still reach to his files from and test his approach github repository

I can say that @trincot answer very close of book author approach

but when I compare the results I get this [1 = author - 2 = @trincot] :

according to the book index taking about linked list comes in chapter6 so I didn't expect his solution will be based on something he didn't mentioned before

plz if I miss any point I will be grateful to tell me it ... thanks

I'm having trouble with the examples in section 5.1.1 Using Named Ports of Kubernetes In Action by Marko Luksa. The example goes like this:

I'm creating a pod with a named port that runs a Node.js container that responds with You've hit when it's hit: