the-stack | Daily Bruin 's data journalism | Data Visualization library

by dailybruin JavaScript Version: Current License: Non-SPDX

X-Ray Key Features Code Snippets Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | the-stack Summary

the-stack is a JavaScript library typically used in Analytics, Data Visualization applications. the-stack has no bugs, it has no vulnerabilities and it has low support. However the-stack has a Non-SPDX License. You can download it from GitHub.

Daily Bruin's data journalism and newsroom tech blog.

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Support

the-stack has a low active ecosystem.

It has 26 star(s) with 19 fork(s). There are 23 watchers for this library.

It had no major release in the last 6 months.

There are 3 open issues and 5 have been closed. On average issues are closed in 723 days. There are 8 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of the-stack is current.

Quality

the-stack has no bugs reported.

Security

the-stack has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

the-stack has a Non-SPDX License.

Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

Reuse

the-stack releases are not available. You will need to build from source code and install.

Installation instructions are available. Examples and code snippets are not available.

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the-stack Key Features

No Key Features are available at this moment for the-stack.

the-stack Examples and Code Snippets

No Code Snippets are available at this moment for the-stack.

Community Discussions

Trending Discussions on the-stack

Where are static structs stored in C#?

How do I find the range(s) of MMAPable virtual addresses in a program?

Error component is not able to navigate in react native

Why writing through a pointer to a moved variable has not been decided as UB in Rust?

Stack Size Configuration Option in Apache Cassandra Config File?

How to clear navigation history in a frame when using the window Current page as a view model Property for a window View Model

How to configure Cookiecutter Django to use Gmail SMTP

ESP register dereference segmentation fault, x86

Why do locally declared primitives goes to the stack while locally defined objects goes to the heap?

What is the stack used for in CPython, if anything?

QUESTION

Where are static structs stored in C#?

Asked 2021-Jun-12 at 21:14

From this question I understood that

structs can be allocated on the stack or in registers and not on the heap
if a struct is part of a reference type object on the heap, the struct will also be on the heap

But how about a struct that is not part of an object, but a static member of a class like so:

...

ANSWER

Answered 2021-Jun-01 at 06:36

Perhaps you missed it: Eric Lippert has mentioned it in a side note:

[...] and static variables are stored on the heap.

That's written in the context of

The truth is that this is an implementation detail [...]

Here's how the Microsoft implementation does it:

But why are static variables stored on the heap?

Well, even the Main() method does not live forever. The Main() method could end and some other threads could still be running. What should happen in such a case to the struct? It needn't necessarily be on the heap, but I hope you see that it can't be on the stack and not in a register. The struct must be somewhere for other threads to still be able to access it. Heaps are a good choice.

Code example where Main() dies:

Source https://stackoverflow.com/questions/67755970

QUESTION

How do I find the range(s) of MMAPable virtual addresses in a program?

Asked 2021-Jun-01 at 12:46

Background information:

I'm using 64 bit Arch on an x86 system.
I'm not using libc or any language that depends on libc. I'm using a proprietary research language. I am making my syscalls through inline assembly.
I'm writing an experimental custom allocator for a research project, so a portable solution is a nice-to-have, but not a requirement.
My programs are statically linked and I am willing and able to rewrite the libraries I'm using to account for a given solution.

According to this SO post: Where is the stack memory allocated from for a Linux process? A program's virtual address space is organized like this:

...

ANSWER

Answered 2021-Jun-01 at 12:46

After a lot of testing I've found the solution I proposed in the question does work. I've been using cat /proc//maps to check my custom allocator, and it's behaving as I expected. To reiterate the solution:

To find the lower bound use sbrk(0), make sure the ptr is page aligned, and then ensure that brk and sbrk are never called again.
To safely approximate the upper bound find the stack size with getrlimit, subtract that from a ptr into the stack, page align the ptr, and then never change the stack size with setrlimit.

If you might need to touch brk, sbrk, or setrlimit, then you can also add some padding to the lower bound and subtract some padding from the upper bound. You can dynamically compute a safe amount of padding by finding how much memory the system has with /proc/meminfo, or if you don't need a general solution you can just over-approximate how much you'll need based on what you're doing.

Source https://stackoverflow.com/questions/67757182

QUESTION

Error component is not able to navigate in react native

Asked 2021-May-20 at 11:54

I have placed ErrorComponent on top in the App.js, but it cannot navigate to Home screen. Is there any other way to do this? any guide will be appreciated. I tried How to use navigation.navigate from a component outside the stack.navigation but this doesn't seem to work in my case.

App.js

...

ANSWER

Answered 2021-May-20 at 11:54

This is because your error boundary is out of the scope of navigation, and that's the reason you're not able to use navigation props to navigate between screens.

withNavigation from react navigation will also not work here because of the scope. The only thing I think you can do is to create a reference of navigation props on component mount on your root component and set that in your react context or redux store and use it as a ref to access navigation props in your error boundary class.

Source https://stackoverflow.com/questions/67619381

QUESTION

Why writing through a pointer to a moved variable has not been decided as UB in Rust?

Asked 2021-May-13 at 08:41

I am investigating possible reasons that prevent the Rust compiler from optimizing certain code pieces. I found this comment in an issue in rust-lang that alerts me.

We must not optimize away storage of locals that are mutably borrowed, because as @matthewjasper notes in #61430, it isn't decided that the following is UB:
...

ANSWER

Answered 2021-May-13 at 08:41

In the same thread, a bit further, there is this other comment by cramertj that I think explains a bit this issue. The code exemplified in this other comment is:

Source https://stackoverflow.com/questions/67514724

QUESTION

Stack Size Configuration Option in Apache Cassandra Config File?

Asked 2021-Mar-14 at 22:41

I installed Apache Cassandra with Zulu JDK 8 on an M1 Mac. Every time I try to start a server with ./cassandra -f in the bin folder I get an error saying,

...

ANSWER

Answered 2021-Mar-14 at 22:41

Thanks to @Andrew,

I could find the stack size declaration in the jvm.options file, under GENERAL JVM SETTINGS.

Changing,

Source https://stackoverflow.com/questions/66629665

QUESTION

How to clear navigation history in a frame when using the window Current page as a view model Property for a window View Model

Asked 2020-Dec-16 at 20:09

I am making a WPF application for sales. What I want to do is to navigate to diffrent views while choosing whether I keep the navigation history (in case I want to keep a temporary instance of a transaction) or remove one or all history of navigation (in case I want to validate all temporary transactions) for example, I have a page transaction there is the case where I want to keep other instances of that page open temperarly or remove all instances if I am done with one or all transaction. I made a mainwindow that contain a frame . I want to navigate to a diffrent page inside the frame when a button is clicked while also choosing to keep or remove the navigation history. What I did so far was implement a window view model class and create a property (PageView) that is a enum that I can convert to the page view I want to show.

The pageview enum

...

ANSWER

Answered 2020-Dec-16 at 20:09

Just wrap the solution with NavigationService.RemoveBackEntry method in the behavior/attached property and apply it to your Frame in xaml.

Source https://stackoverflow.com/questions/65289979

QUESTION

How to configure Cookiecutter Django to use Gmail SMTP

Asked 2020-Nov-09 at 07:57

Can anyone help me with to configure my django cookiecutter production setup to work with Gmail SMTP.

I have deployed my application using docker. Cookiecutter gives you to configure your app to anymail providers. I've chosen Mailgun however I didn't have an email address that has been verified by my domain provider. So, I couldn't register any user to my app because ( https://cookiecutter-django.readthedocs.io/en/latest/deployment-with-docker.html#configuring-the-stack) here it says you can't :)

I have tried to override the default email verification setting from "mandatory" to "none". However, it still threw 500. In below, I've added all-auth settings. I had to decide either to buy an email address or configure my app to work with Gmail Smtp or get rid of this email verification process.

settings/base.py

...

ANSWER

Answered 2020-Nov-09 at 07:57

You don't config email host and email from the sender. Try this

Source https://stackoverflow.com/questions/62453211

QUESTION

ESP register dereference segmentation fault, x86

Asked 2020-Oct-01 at 03:12

I am trying to follow along this tutorial on the stack in x86 assembly. It seemed to me that esp is a register containing a pointer to the top of the stack - and to test this out I dereferenced esp and tried to store its value in eax. This gave me a segmentation fault, and I cannot figure out why. With GDB, I was able to confirm that this dereference caused the error:

...

ANSWER

Answered 2020-Oct-01 at 02:06

In 64-bit mode, the stack pointer is RSP, not ESP. Using ESP uses the low 32 bits of the register, which isn’t a valid memory address.

Source https://stackoverflow.com/questions/64147787

QUESTION

Why do locally declared primitives goes to the stack while locally defined objects goes to the heap?

Asked 2020-Jul-07 at 18:56

In Java, when we locally declare a variable, it goes in the Memory Stack, while locally defined objects goes to the Heap.

...

ANSWER

Answered 2020-Jul-07 at 18:36

Primitives are a known size, up to 8 bytes. Storing a primitive on the heap would require up to 8 bytes of heap space and 4/8 bytes of stack space to store the reference (which is still required to see if the memory is still referenced - see the comment above by @akuzminykh). So it would potentially double the amount of memory required without giving any benefit. Stack space is also cleared up neatly, without having complex garbage collection, so as well as memory efficiency it also improves processing overhead.

A reference to an object is 4/8 bytes, while the object itself can (in theory) be any size, it would not be good to store this on the stack (as you pointed out).

Source https://stackoverflow.com/questions/62781288

QUESTION

What is the stack used for in CPython, if anything?

Asked 2020-Jul-05 at 06:37

As far as I understand:

The OS kernel (e.g. Linux) always allocates a stack for each system-level thread when a thread is created.
CPython is known for using a private heap for its objects, including presumably the call stack for Python subroutines.

If so, what is the stack used for in CPython, if anything?

...

ANSWER

Answered 2020-Jul-05 at 06:37

CPython is an ordinary C program. There is no magic in running Python script / module / REPL / whatever: every piece of code must be read, parsed, interpreted — in a loop, until it's done. There is whole bunch of processor instructions behind every Python expression and statement.

Every "simple" top-level thing (parsing and production of bytecode, GIL management, attribute lookup, console I/O, etc) is very complex under the hood. If consists of functions, calling other functions, calling other functions... which means there is stack involved. Seriously, check it yourself: some of the source files span few thousand lines of code.

Just reaching the main loop of the interpreter is an adventure on it's own. Here is the gist, sewed from pieces from all around the code base:

Source https://stackoverflow.com/questions/62252727

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

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