dora | Dora is a network host discovery daemon | TCP library
kandi X-RAY | dora Summary
kandi X-RAY | dora Summary
Dora is a network host discovery daemon. Built in Python and JavaScript.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of dora
dora Key Features
dora Examples and Code Snippets
git clone --depth=1 https://github.com/jorge-matricali/dora.git
docker-compose up -d
cd dora/frontend
bower install
Community Discussions
Trending Discussions on dora
QUESTION
I'm trying to use react hooks in my project and I have a problem with useState when I use array as value.
...ANSWER
Answered 2021-Jun-02 at 01:54In the first instance, you are setting state to a new object reference. In the second case, you are not setting a new object reference, you're calling reverse
on the array, which mutates it.
In both cases, I would recommend making a shallow copy of the array and calling reverse
so React knows that it's dealing with new state and therefore knows to re-render.
QUESTION
I am trying to sort this file that has this information below
...ANSWER
Answered 2021-May-28 at 04:45Below part is problematic in some ways:
QUESTION
following are my files for html, .ts and json . As json data was very extensive therefore i have just added a few states and their cities. my 1st dropdown is showing all states. Now I want to match my 1st dropdown's selected value of state with a key "state" in "cities" object in my json file so i can populate 2nd dropdown with cities relevant to that state. and I want to do this in function "getCitiesForSelectedState". please help me find solution for this.
//.ts file
...ANSWER
Answered 2021-Apr-27 at 16:44You can do it with the $event
parameter.
Make sure to compare your values safely.
If your value is not in the right type or has spaces or unwanted chars, this c.state == val
might not work.
You can use the trim
function to compare your value safely:
c.state.trim() == val.trim()
HTML
QUESTION
In Spark 3.0.2
, I'm writing a Dataset
in a parquet file. My code writing it ends that way :
ANSWER
Answered 2021-Mar-24 at 07:24I'm able to reproduce this issue.
QUESTION
I am creating a poker game, as stated before, but some poker card "if" statements are being met multiple times, which should not happen.
...ANSWER
Answered 2021-Mar-22 at 14:53Perhaps when a decision is made on whether to bet or check, you should return from that function? The way you have it written right now, the second check message is coming because your user doesn't have two diamonds, but has something else that would give the message.
Using an "elif" is also an option. In other languages, this is written as "else if", where the path should be if this first one isn't satisfied AND this one is.
EDIT: Here's an example:
QUESTION
In a Rails project that uses a Postgres database, I use rspec for testing. This worked fine until I added another migration. Now rspec fails with:
...ANSWER
Answered 2021-Jan-20 at 17:32I had the same issue and after many hours pulling my hair out, I've found that we need to replace all require 'rails_helper
by require 'spec_helper'
at the top of each spec.
QUESTION
I am trying to create an html table using the datatable function in the DT package so that when I sort the data in R markdown, missing rows are sorted after the highest number.
For example, in the following table, when I sort by "age" in the markdown file, I would like the row with NA to be listed last so that the order is 14,15,21,NA.
...ANSWER
Answered 2021-Jan-26 at 08:26With the render
columnwise option, you can set the value of the missing values during the sorting:
QUESTION
I've been trying to create a class as follows:
...ANSWER
Answered 2021-Jan-18 at 21:00By calling it as Student.RegisterStudent(...)
, you're using RegisterStudent
as a classmethod, even though you want to create an instance of the Student
. The easy fix is:
QUESTION
Thank you to Dora Beronic for helping me solve my question. What I did was that I appended the data already inside of the scores.txt and added \n to my string written.
New CodeHackerGUI.java
...ANSWER
Answered 2021-Jan-04 at 21:28If you do not want to overwrite the text each time you need to append. You can do this by initializing your FileEriter as follows:
FileWriter myWriter = new FileWriter("scores.txt", true);
This constructor takes 2 parameters, one is the file you are writing to and the second is a boolean expression that determines will you append to the file or overwrite it.
If you want to know more about it you can check it out here: https://www.geeksforgeeks.org/java-program-to-append-a-string-in-an-existing-file/
QUESTION
I have a dataset with multiple rows that describes one user. I am trying to change my dataset to be one row represents one user.
Reproducible Example:
...ANSWER
Answered 2020-Dec-22 at 17:54It may be better to keep it in a list
instead of a single string after doing the grouping by 'Name'
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