I am a nodejs newbie. I have two simple models, User and Story. Here is what I want to do: I want to retrieve all stories that have {status:"public"} and store it in an array called retrievedStories. Then for each story I want to use its "user" field (which contains the object id of the… Read More Multiple async queries in nodejs (mongoose)
I have a gameobject called Starting containing one Square and a legacy Text The square serves as a button with the text saying "Press Start Button". The user will press the start button (mapped to spacebar). This will set the Starting gameObject to inactive. The code is as follows: void Update() { if (Input.GetKeyDown(KeyCode.Space)) {… Read More Unity object reference not set to an instance of an object after SetActive false
Currently I made bullet shoot from players position. Problem is that it shoots from player’s center and not from the gun. I changed position of the bullet to make it shoot out from the gun. But the problem is that, when I start to rotate the player, bullet copies the rotation but not the position… Read More Shoot from gun in top down shooter Unity3D
This is a beginner question. I want to split a pandas df horizontally all n entries and then insert the split data each as a separate column. E.g. n=2: a b to a b c d e f 1 11 1 3 5 11 13 15 2 12 2 4 6 12 14 16 3… Read More Horizontal split of Pandas DataFrame to append the content as a column via Numpy
How can I extract the set of (a) and set of (b) as shown in the image to two different vectors, the first vector for (a) values and the second for (b) values >Solution : Using names > tmp=c("a"=1,"b"=2,"a"=3,"b"=5) > tmp[names(tmp)=="a"] a a 1 3
I have an array std::array<T, N> arr for some T, N and I’d like to get an array of reference over arr‘s elements like so std::array<std::reference_wrapper<T>, N> arr_ref. But as a reference needs to be set at its initialization, I did not work out a solution. Therefore I would like to do something like that:… Read More Reference over array into array of reference
I would like to check an input as it’s being typed, without pressing a key or a button asynchronously.I would like to set a variables value to true if a person has typed more than 4 letters. I think it would also be fine if the value sets to true (if the value is 4… Read More Check Input as its being typed ReactJS
While creating a guess_the_number game in python, I wanted to catch the exception if user enters an invalid number, i.e. ValueError when typecasting the entered string to integer, I created a takeInput() function. It works fine except for the part that when I raise an exception and enter a valid number after that, I get… Read More TypeError: in python in custom input function, exception handling
From below object { "user": { "id": 9, "email": "abcd@example.com", }, "country": "USA", "first_name": "firstName", "last_name": "lastName", } How can we move first_name and last_name to a new array named names and push that into the same object as below { "user": { "id": 9, "email": "abcd@example.com", }, "country": "USA", "name": [ { "first_name": "firstName",… Read More How to move a key value to an new array inside an object
I tried initializing solidity version but I get this error, how to di it right way paragma solidity ^0.8.14; error from solidity: ParserError: Expected ‘;’ but got ‘^’ –> .deps/SimpleStorage.sol:1:18: | 1 | paragma solidity ^0.8.14; | >Solution : should be pragma instead of paragma