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Mulitple Draggables but fewer Droppables (drop zones)

Hello I am working with a matching template where I need multiple draggable elements to be dropped to fewer droppable zones for matching. I am trying to "tweak/convert" the code from a similar working...

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Error no Jest: This usually means that you are trying to import a file which...

I'm trying to run Jest with React, I started the project with --create-react-app, then added --babel and after --jest, but when I run [yarn jest], this error is displayed on screen, can anyone help...

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Adding a register/login system for my basic html+css+js website using node.js

I have built a pretty basic web app using my noob knowledge of Bootstrap and jQuery. I am trying to add a very basic register/login system so that the resources won't be public. I have followed various...

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Dealing with ReadableStream response from API cat-facts

I was doing a pretty easy task of getting information from an API but then i got the response as ReadableStream and things start to turn dark as always. I am trying to use the cat-facts API.URL :...

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Firebase update field using variable in javascript

I have a function which should go ahead and update the database on firebasefunction editUser() { var userID = document.getElementById('userID').value; var editUserField =...

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React Component not correctly reloading on stateChange

I am using react hooks and I have a child component Addmember and a parent component MemberList. Within the member list the user clicks add member and a model pops up (the child component) and then...

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How to link routes with controllers in node js?

I have some API's written in server.js. I want to make MVC structure like i want to have all routes in routes directory and API's in controller. How i can make this structure with koa and nodejs. I'm...

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JS search in object values

I have an array of homogeneous objects like so;[ { "foo" : "bar", "bar" : "sit" }, { "foo" : "lorem", "bar" : "ipsum" }, { "foo" : "dolor", "bar" : "amet" } ] I'd like to search these objects' values...

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Add a prefix of +1 to a string

How can I remove all non 10 digit numbers from a string, and add a +1 to the front of it if it doesn't exist yet?Here's the regex code I have:phoneNumber.replace(/[^0-9.\,]/g, ''); phoneNumber = '+1' +...

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How to create DB connections in nodejs for MSSQL?

I am using TediousJS in my node app for querying MSSQL. The example given by them shows DB connection and querying like thisvar mssqlClient = new Connection({ // connection configuration });...

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AngularJS | How to render a HTML element(directive) only when condition is met?

I am working on a AngularJS(1.4) project where I want to load a directive on a particular conditions.This directives when loaded calls few APIs and display some HTML elements.I want to call those API...

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Shell programming in Javascript with Node. How to deploy the completed CLI app?

I have a simple CLI application written in Javascript using Node that is for internal use by a small team. It runs in the Linux terminal as a CLI app. You can think of it as a shell script written in...

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Angular2 Dynamic input field lose focus when input changes

I'm making a dynamic form. A Field has a list of values. Each value is represented by a string.export class Field{ name: string; values: string[] = []; fieldType: string; constructor(fieldType: string)...

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How to decrypt AES 256 CBC by javascrypt (Not Nodejs)

How can I decrypt an encrypted string like dIwykUwOomuWcdw/QX/Aig== in AES 256 CBC mode with the key ds8am3wys3pd75nf0ggtvajw2k3uny92 and iv jm8lgqa3j1d0ajus as the picture below just with javascript...

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Difference between object prototype object and object prototype property

I'm confuse in object prototype and object prototpye propertythis is a function constructorvar Person = function () {}; this is object made from function constructorvar junaid = new Person(); Is object...

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MDN states that function calls have higher operator precedence than the...

I have an example at https://jsfiddle.net/xfmkgurv/ where the prefix increment operation increments a variable's value then that variable's value is passed as an argument to a function. The code below...

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How to prevent user from adding more than 4 Tasks to a ToDo list in JavaScript

I have a todo list with very simple functionality. People can enter a new task in the input box and delete the task after it's added and also cross it out when its clicked in order to check the task...

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How to keep the ball within the wall boundaries in JavaScript breakout game?

I'm creating a Javascript breakout game but have an issue with keeping the ball within the wall boundaries. On running the program, the paddle works fine with a static ball created right in the middle...

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I'm getting no output in react and getting the previous statements in...

Error: A(...): Nothing was returned from render. This usually means a return statement is missing. Or, to render nothing, return null. ▶ 17 stack frames were collapsed. ./src/index.js...

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return statement does not work in forEach loop [duplicate]

This question already has an answer here:What does `return` keyword mean inside `forEach` function? [duplicate] 2 answersHow to get index of object by its property in JavaScript? 18 answersI'm trying...

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