What is the ideal data type to use when storing latitude / longitude in a MySQL database?
Bearing in mind that I’ll be performing calculations on lat / long pairs, what datatype is best suited for use with a MySQL database?
mapping
Getting org.hibernate.MappingException: No Dialect mapping for JDBC type: -4 exception?
I am getting following exception at query.list() line:
Find Long/Lat inside of polygon with MySQL 5.6
I have a locations table that has many rows of locations and data. There are 2 columns inside of that – Longitude and Latitude. I want to find records from that table that are found in a defined map polygon area.
How to make a button that show the next array item inside a card in gatsbyJs (React)
I’m doing a standard mapping like this; I use slice(0,1) to get only the first array item; without the slice will show all 10 categories in it own card
Pass onClick to each image using map function
I am looking to pass an onClick function to each image element created using the map function. So that when a user clicks the thumbnail image it changes the main image to the thumbnail that was clicked.
useState for mapped buttons
I have several cards mapped from an API. Each card has a button, that when clicked, expands the grades section for each card. My issue is that, ALL buttons only trigger the first card.
my component isn’t shown with React mapping
I’m trying to render posts that come from my database, the data is printed as an array in the console.log(post) but the post component doesn’t render.
ReactJS if statement or conditionals inside jsx file
i have the app putting names up of made up people. I want to see if i can add a conditional or if statement to my mapping in Name.jsx. If so, how would i do that? If anyone can help me this, that would be great! I would want it to pull firstName and lastName if lastName is a specific name.
Uncaught TypeError: can’t access property “map”, sizes is undefined
I am trying to map the prop sizes, that I’m saving in a state when the item has been loaded from the api, but I keep getting this error:
“Uncaught TypeError: can’t access property “map”, sizes is undefined”
How to display the values from a map on a react web app (javascript)
I am new to JavaScript. I have a map in which I store 3 values to each key. The size of the map is variable and a new key:values pair is added every time a new item is published on the app.