node.js

问题 Error: ENOSPC: no space left on device, watch '/home/me/Desktop/Edu/Web/JS/React/weather_app/public' I have over 700gb free space on my HDD, so don't think it is related to the error. !After the error it became unavailable to run 'npm start' on any project present on my machine. Today I started work on my project that I left yesterday evening in a perfectly working state. I wanted to add redux to my React project. Steps I made were: Initializing a local git repository and commiting the key

问题 Error: ENOSPC: no space left on device, watch '/home/me/Desktop/Edu/Web/JS/React/weather_app/public' I have over 700gb free space on my HDD, so don't think it is related to the error. !After the error it became unavailable to run 'npm start' on any project present on my machine. Today I started work on my project that I left yesterday evening in a perfectly working state. I wanted to add redux to my React project. Steps I made were: Initializing a local git repository and commiting the key

问题 I would like to execute a set of promises using Promise.all(). My approach is to put these promises in an array and then pass the array to Promise.all(). However, I find that the promises start executing as soon as they are declared and do not even wait for Promise.all to be called. Why is this happening and how can I have the promises only execute upon calling Promise.all()? let promiseArray = []; const values = [1, 2, 3, 4, 5]; values.forEach((value)=>{ promiseArray.push( new Promise(

问题 I would like to execute a set of promises using Promise.all(). My approach is to put these promises in an array and then pass the array to Promise.all(). However, I find that the promises start executing as soon as they are declared and do not even wait for Promise.all to be called. Why is this happening and how can I have the promises only execute upon calling Promise.all()? let promiseArray = []; const values = [1, 2, 3, 4, 5]; values.forEach((value)=>{ promiseArray.push( new Promise(

问题 I am currently working on an application which allows users to save sensitive date. Since it's a web application we are using NodeJS and MongoDB for persistence. (BTW I am completely new to Node and NoSQL) We do have users who can store kind of a medical history. Name and email are stored within a user document while the other stuff is stored within the profile. To improve security I would like to encrypt the references from a user to his profile and vice versa. At the moment I am using the

问题 I recently created a website with create-react-app. Since this is not a web app, why do I need a server to see it? I tried to open the index file in build folder but it doesn't work unless I'm serving it from a server. 回答1: You can set the homepage root url in the package.json file e.g. { ..., "homepage":"file:///<path to build directory" } npm run build This will now find the static content in the build directory from the file system without a server. 来源： https://stackoverflow.com/questions

问题 I recently created a website with create-react-app. Since this is not a web app, why do I need a server to see it? I tried to open the index file in build folder but it doesn't work unless I'm serving it from a server. 回答1: You can set the homepage root url in the package.json file e.g. { ..., "homepage":"file:///<path to build directory" } npm run build This will now find the static content in the build directory from the file system without a server. 来源： https://stackoverflow.com/questions

问题 The function setValue receives a value and returns a function. Inside the second function I'm trying to console log the value of value but I get Error: Evaluation failed: ReferenceError: value is not defined My code bellow. It can be tested on try-puppeteer, just copy and paste my code and remove the require statement. const puppeteer = require('puppeteer'); (async () => { const USERNAME = 'helloworld'; const setValue = (value) => (input) => { console.log(value) }; const browser = await

问题 I am using React Native and Node.js. I want to share code between the two. My folder structure is as so. myreactnativeapp/ mynodeserver/ myshared/ In the react native and node apps I have included the package.json "dpendencies" : { "myshared": "git+https://myrepository/ugoshared.git" } This can then be included in each project via require/import etc. This all works fine and for production I'm happy with it. (Though I'd love to know a better way?) The issue I'm facing is in development it's

问题 I am using React Native and Node.js. I want to share code between the two. My folder structure is as so. myreactnativeapp/ mynodeserver/ myshared/ In the react native and node apps I have included the package.json "dpendencies" : { "myshared": "git+https://myrepository/ugoshared.git" } This can then be included in each project via require/import etc. This all works fine and for production I'm happy with it. (Though I'd love to know a better way?) The issue I'm facing is in development it's