moonphase | Packege MoonPhase allow calculat the phase of Moon | Code Inspection library
kandi X-RAY | moonphase Summary
kandi X-RAY | moonphase Summary
Packege MoonPhase allow calculat the phase of Moon, and other related veriables. It's base on php-moon-phase.
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QUESTION
I have very little experience with postgresql and was wondering how i can access certain fields from an array of json object so i can dynamically use them;
here is what the array i am trying to iterate looks like: ``
...ANSWER
Answered 2022-Feb-26 at 13:51PostgreSQL has the following JSON operators for accessing JSON fields: ->
and ->>
. You can read more about them here: https://www.postgresql.org/docs/9.3/functions-json.html
In your particular example (assuming wdata
holds the JSON you posted above), you can access data like this
wdata->0->>'address'
- that is, fetch the first element from the array and then fetch itsaddress
field;wdata->0->'days'->0->>'humidity'
- that is, fetch the first element from the array, then fetch the days field (which itself is an array), then fetch the first element of the nested array and finally fetch thehumidity
field of the element from the nested array;
QUESTION
Its easy to get the percentage of the moon illuminated on a given day
...ANSWER
Answered 2022-Jan-06 at 14:46Eureka!
I found the answer on this site
The way they solve the problem is by calculating the area of the overlap between the two circles, and then subtract it to the area of the moon circle. For that, the distance between the centre of the two circles must be known, which is exactly what I needed (xmn).
For that they calculate the area of the crescent of the bigger circle, then find the area of the overlap between the two, and finally the area of the crescent of the smaller circle. Then we can find the percentage of the total area.
Somehow, the equation to find the area of the crescent of the bigger circle (lune_1 on the website), gives me the area of the smaller crescent instead. Don't really understand why but it fits my purpose.
If only I still had the math chops to pull it off, solving equation lune_1 in order to find "d" would give me a direct answer, in which lune_1= illuminated area and d=distance between the centre of the two circles.
After a few adjustments, I ended up with this code
QUESTION
I'm not sure why I'm not getting any data returned back. I know the API key and URL is working properly. Below is the Struct and my class I'm using. I also included what I'm doing in my SwiftUI file.
In the response I can see that I am getting back a 200. I've tried a few different ways to mapping the data to my view, but so far no luck.
...ANSWER
Answered 2021-Sep-10 at 00:20Tips:
- you don't need to define CodingKeys enum, just set
.keyDecodingStrategy = .convertFromSnakeCase
for your JSON decoder; all underbar key, likewind_gust
, will be automatically convert to camelCase,windGust
for example.
QUESTION
I'm new to learning SwiftUI and XCode and am unable to figure out how to pass a variable from view to another. I read on @State and @Binding variables but from what I can tell that is for values that change. I have a static value that I calculate based on the date when the user opens the app.
The variable is the current moon phase and is stored locally in my main ContentView. I want to pass this variable to a second view that's accessed by clicking a NavigationLink.
ContentView.swift
...ANSWER
Answered 2021-May-14 at 05:23You haven't shown what the type of moonPhase
is, so I'm just going to use String
as an example.
QUESTION
I have a json data as below -
...ANSWER
Answered 2020-May-30 at 11:25Look at this question, there is two answers that can help you.
How to add properties at runtime to JSON (C#)
You can parse your forecast json to JObject, and get all values from it with foreach.
QUESTION
I have list of objects with weather values List weatherList = new ArrayList();
on the list I have two objects:
...ANSWER
Answered 2020-Mar-10 at 19:02You can just declare another variable that stores the current value (temperatureHigh/temperatureLow)/2. Then, you compare it to the resultNumber that you stored. If this temporary number is larger, you update both the resultNumber and resultWeather to the current value and weather.
QUESTION
I sure would appreciate some assistance. I'm using Swift 5.1. What I'm attempting is to get the current date (date4) and format it to a three letter month abbreviation. No issue that part works fine. Then I define a constant called (currentMonthDate) that holds the concatenation of the three letter month and the string "MoonData". The result looks like this: "FebMoonData" - Up to this point all works as designed.
My Json is separated by month. Shown below is two months worth of Json as an abbreviated example. Obviously my model is designed to to accommodate the Json structure - not included. Now the issue. If you look at the JSONDecoder line of code you'll notice that I'm attempting to use the concatenation string "currentMonthDate" in the decoder line of code. My thought being that as each new month arrives data4 will be change and currentMonthDate will reflect that change and will then find the JSON block of data that reflects that particular month. The error I'm receiving is: Cannot convert value of type 'String' to expected argument type 'Data' For the sake of clarity if I simply type FebMoonData (name of the Json block for Feb) in the decoder line it works as expected. That is, it finds the Json array titled FebMoonData. Thank you!
...ANSWER
Answered 2020-Feb-27 at 17:32The from
parameter of decode
must be Data
, not String
, this is the message of the error. The literal date string as JSON data makes no sense anyway. It's impossible to compose variable names at runtime.
What you can do is
QUESTION
I am trying to do an inverse fuzzy selection with multiple criteria on a python dictionary and I am unable to achieve it.
I have a dictionary with weather info:
...ANSWER
Answered 2020-Jan-21 at 16:37Is this what you're after? Using any()
and a generator:
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