I currently have a database schema like the following table: CREATE TABLE Measures( expId SERIAL, iteration INT NOT NULL, value float4 NOT NULL, PRIMARY KEY(expId, iteration) ); So, a table of various measurements, repeated for n iterations. Though, because we…
I am running a function when the user clicks a button, this function updates my useState and adds an array into it as data. This data later on is passed into another webpage where the array objects are displayed in…
I can't understand how to make an object which will be make from user input and then added to array of objects Here is what i tired: let Contact = { fristname: "fname", lastname: "lname", } const Contacts = []…
I am trying to make a site where the user can hit a button and it will return data from the array. For example, a button called 'show male dogs' should bring back the 3 male dogs in the array.…
Here, i have an array with 5 numbers, and 3 (or more) of them are the same: [1,1,4,2,1]. How can i get just the other two numbers from the array (in the example case, [4,2])? Here are some test cases:…
A two-dimensional array is to be extended (No new one is to be created): let array:number[][] = [ [5, 6], ]; For this we have two more two-dimensional arrays a1 and a2: let a1:number[][] = [[1, 2], [3, 4]]; let…
I am trying to make a site where a user can press a button and then the data from an array can show on the screen. I cannot figure out how to do this. please help! (p.s. i'm a beginner.…
i have a book shop that has books, and the user can add those books into cart, then the total price of those books is shown in the cart, each time he add something new, the state adds that number,…
I have a 3-layer array that I want to filter out data based on the child array values. I can get semi-correct results but the last part I am having issues with. { "id": 1, "grandparent": "Timmy", "parents": [ {…
I am trying to achieve a pretty complex iteration but havent been successful so far using reduce. Here is a small example of it The input is as follows let input = { "data": [ { "state": "CA", "tests": 12,…