elv | Elvis operator functionality for JavaScript | Runtime Evironment library

by dsfields JavaScript Version: 2.2.0 License: MIT

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kandi X-RAY | elv Summary

elv is a JavaScript library typically used in Server, Runtime Evironment, Nodejs applications. elv has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can install using 'npm i elv' or download it from GitHub, npm.

Elvis operator functionality for JavaScript. With the absence of an Elvis (existential) operator in JavaScript, I often find myself writing the same checks to see if something is undefined over and over and over again. The || operator in JavaScript is generally inadequate for this purpose, because it fails to account for Booleans. So, I decided to create a small module to clean up the redundant code.

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Security

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Support

elv has a low active ecosystem.

It has 6 star(s) with 0 fork(s). There are 2 watchers for this library.

It had no major release in the last 12 months.

There are 1 open issues and 2 have been closed. On average issues are closed in 21 days. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of elv is 2.2.0

Quality

elv has no bugs reported.

Security

elv has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

elv is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

elv releases are not available. You will need to build from source code and install.

Deployable package is available in npm.

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

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elv Key Features

No Key Features are available at this moment for elv.

elv Examples and Code Snippets

No Code Snippets are available at this moment for elv.

Community Discussions

Trending Discussions on elv

PHP; how do I sum a variable after $POST with issest

I can't use z-index correctly in a dropdown menu to display overflow correctly

"Error in kernelUD: At least 5 relocations required to fit a home range" but have many more than 5 relocations per group

How to resize image with pygame.transform.scale?

How to fix my topological.cpp outputting error?

Print only words with Capital Letters (Linux)

Select count with join and group by

How to group values from an array of objects by same values with javascript?

Recursive function has bad performance

double pointer vs pointer to array, incompatible pointer type

QUESTION

PHP; how do I sum a variable after $POST with issest

Asked 2021-Mar-23 at 01:35

I have a massive file with a few variable I would like to sum(add) after they are POST.

I should note that I am doing this in TCPDF. I don't know if it makes a difference. Nonetheless, The variables I am trying to sum are being posted via an isset function. After the variables are posted, I declared a new variable. Example $sum = $two+$three+$four+$five;. However, when I do this I get an undefined variable error. Ideally, I would like declare a new variable that takes the summed values and placed them in a HTML string in my TCPDF file. for example

Total: $sum

...

ANSWER

Answered 2021-Mar-23 at 01:08

Maybe try one at at time. Its tedious but i think it might work.

Source https://stackoverflow.com/questions/66755684

QUESTION

I can't use z-index correctly in a dropdown menu to display overflow correctly

Asked 2021-Mar-09 at 09:10

I made a dropdown menu with a bunch of names on it in the nav tag. After the tag I put an main tag. Since these share the top border of main, some of the items overflow the nav and get into the main's space. Now I don't want to use overflow:scroll. I want the items to still show on the main side of the page on hover. I tried to use z-index but I couldn't make it work. Can you guys take a look? Im pretty new to css and html. Thank you. You can find all my code down below. I also added a photo.

...

ANSWER

Answered 2021-Mar-08 at 18:51

the z-index works only on positioned elements (anything that is different from position: static), by adding position: relative and closing your ul tag I got this result

Source https://stackoverflow.com/questions/66535211

QUESTION

"Error in kernelUD: At least 5 relocations required to fit a home range" but have many more than 5 relocations per group

Asked 2021-Feb-05 at 19:13

I have been making kernel density home range estimations for canid groups in an area by population and per pack across various temporal scales. However, when I attempt to run kernelUD on a subset for each year I get Error in kernelUD(P17.sp[, "Pack"], h = "href", grid = 500, same4all = TRUE) : At least 5 relocations are required to fit an home range. I previously eliminated all groups that had less than 5 relocations and when I double check my data frame the smallest number of relocations is 201. I was able to run this on the global dataset (across years) per pack and had no problem. Any help or insight would be greatly appreciated.

The code I've used is below. My original data frame has Pack as a factor (and is the only factor vector in the data frame) and numeric coordinates in lat/long.

...

ANSWER

Answered 2021-Feb-05 at 19:12

Got it to work. It appears it was carrying over packs with no data for the subset year and they weren't showing up in my dplyr table intended to check that the data was right. ftable was able to show me the levels and associated number of points for each pack. The following code now works:

Source https://stackoverflow.com/questions/66058412

QUESTION

How to resize image with pygame.transform.scale?

Asked 2021-Jan-31 at 18:59

Got some code, and stumped on a question: How to resize image with pygame.transform.scale? Looked at the docs, but can't understand it. I'm puzzled on the player.py part.

So here's my code:

elves.py:

...

ANSWER

Answered 2021-Jan-31 at 16:44

Without knowing more of what you exactly need, give this a try as it's worked well for me.

Source https://stackoverflow.com/questions/65981279

QUESTION

How to fix my topological.cpp outputting error?

Asked 2020-Nov-17 at 06:15

i have been provided middleearth.h/cpp and was asked to make a makefile, doxyfile (which i did correctly) and a topological.cpp that works but has a small mistake in the output and i need help with that please.ill provide all three files and the text we use to test and the error.

...

ANSWER

Answered 2020-Nov-17 at 06:15

You are confusing yourself. You have your solution in edges. There isn't a reason to read the data a second time. For example, you can simply output sorted/unique elements of edges, e.g. the modifications to your code are:

Source https://stackoverflow.com/questions/64869540

QUESTION

Print only words with Capital Letters (Linux)

Asked 2020-Oct-21 at 20:30

So I am currently reading from this txt file:

...

ANSWER

Answered 2020-Oct-20 at 17:30

Could you please try following, written and tested with shown samples only in GNU awk.

Source https://stackoverflow.com/questions/64450215

QUESTION

Select count with join and group by

Asked 2020-Oct-11 at 10:35

I have linq query in my code which does not give the right output. I have two Mysql tables "classes" and "eleves" which have a 1-n relationship. This is the query:

...

ANSWER

Answered 2020-Oct-11 at 10:35

Use the following LINQ query:

Source https://stackoverflow.com/questions/64302613

QUESTION

How to group values from an array of objects by same values with javascript?

Asked 2020-Oct-01 at 08:24

I have an array of objects as following

...

ANSWER

Answered 2020-Sep-30 at 11:20

You could take a nested approach with an array for the grouping levels.

This solution removes unwanted properties from the object and pushes the final object to the most nested children array.

This solution works for an arbitrary count of levels.

Source https://stackoverflow.com/questions/64135562

QUESTION

Recursive function has bad performance

Asked 2020-Jun-23 at 08:33

I am learning clojure and I am doing some exercises to practice. Currently I am working on the next problem:

The Elves contact you over a highly secure emergency channel. Back at the North Pole, the Elves are busy misunderstanding White Elephant parties. Each Elf brings a present. They all sit in a circle, numbered starting with position 1. Then, starting with the first Elf, they take turns stealing all the presents from the Elf to their left. An Elf with no presents is removed from the circle and does not take turns.

For example, with five Elves (numbered 1 to 5):

     1

5     2

   4 3

Elf 1 takes Elf 2's present. Elf 2 has no presents and is skipped. Elf 3 takes Elf 4's present. Elf 4 has no presents and is also skipped. Elf 5 takes Elf 1's two presents. Neither Elf 1 nor Elf 2 have any presents, so both are skipped. Elf 3 takes Elf 5's three presents. So, with five Elves, the Elf that sits starting in position 3 gets all the presents.

With the number of Elves given in your puzzle input, which Elf gets all the presents?

My code:

...

ANSWER

Answered 2020-Jun-23 at 08:33

the problem is that concat is inefficient here. There is a better way to add items to the end of collection, if you use vectors:

Source https://stackoverflow.com/questions/62529904

QUESTION

double pointer vs pointer to array, incompatible pointer type

Asked 2020-Jun-21 at 20:58

Having this:

...

ANSWER

Answered 2020-Jun-21 at 14:18

#include 
#include 

int main()
{
    char org[] = "Cats,Dogs,Mice,,,Dwarves,Elves:High,Elves:Wood";
    char *token = strtok(org, ",");
    while (token != NULL) {
        printf("Token: %s\n", token);
        token = strtok(NULL, ",");
    }
}

Source https://stackoverflow.com/questions/62499657

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Vulnerabilities

No vulnerabilities reported

Install elv

You can install using 'npm i elv' or download it from GitHub, npm.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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