node.js

问题 I am not being able to pipe the output of the ffmpeg over a stdout. Following are the block of code what I coded so far. var http = require('http') , fs = require('fs') var child_process = require("child_process") http.createServer(function (req, res) { console.log("Request:", dump_req(req) , "\n") // path of the var path = 'test-mp4.mp4' //test-mp4-long.mp4 , stat = fs.statSync(path) , total = stat.size var range = req.headers.range , parts = range.replace(/bytes=/, "").split("-") ,

问题 I am not being able to pipe the output of the ffmpeg over a stdout. Following are the block of code what I coded so far. var http = require('http') , fs = require('fs') var child_process = require("child_process") http.createServer(function (req, res) { console.log("Request:", dump_req(req) , "\n") // path of the var path = 'test-mp4.mp4' //test-mp4-long.mp4 , stat = fs.statSync(path) , total = stat.size var range = req.headers.range , parts = range.replace(/bytes=/, "").split("-") ,

问题 I am not being able to pipe the output of the ffmpeg over a stdout. Following are the block of code what I coded so far. var http = require('http') , fs = require('fs') var child_process = require("child_process") http.createServer(function (req, res) { console.log("Request:", dump_req(req) , "\n") // path of the var path = 'test-mp4.mp4' //test-mp4-long.mp4 , stat = fs.statSync(path) , total = stat.size var range = req.headers.range , parts = range.replace(/bytes=/, "").split("-") ,

问题 This is a very basic question. In Java I use the finally statement to close resources because "it's a good practice". I've been developing in Javascript and then in Node.js during some years and I've never used the finally statement. I know that in Node.js all of us follow the first parameter error handling pattern. Anyway, the 2 following snippets do the same: try{ throw 123 }catch (e){ }finally{ console.log(1) } . try{ throw 123 }catch (e){ } console.log(1) Both print 1. Why is finally a

问题 I have the following mongoose schema structure userSchema = new Schema({ roles: [ role: {type: Schema.Types.ObjectId, ref: 'Role' } ] }) rolesSchema = new Schema({ name: String, roleEntities: [ { entity : {type: Schema.Types.ObjectId, ref: 'RoleEntity' }, abilities : [{type: Schema.Types.ObjectId, ref: 'Ability' }] } ] } roleEntitiesSchema = new Schema({ name: String }) abilitiesSchema = new Schema({ name: String }) How can i populate all these nested documents while doing a find on the USER

问题 I have the following mongoose schema structure userSchema = new Schema({ roles: [ role: {type: Schema.Types.ObjectId, ref: 'Role' } ] }) rolesSchema = new Schema({ name: String, roleEntities: [ { entity : {type: Schema.Types.ObjectId, ref: 'RoleEntity' }, abilities : [{type: Schema.Types.ObjectId, ref: 'Ability' }] } ] } roleEntitiesSchema = new Schema({ name: String }) abilitiesSchema = new Schema({ name: String }) How can i populate all these nested documents while doing a find on the USER

问题 How do you re-export the exports from multiple files in an ESM module without listing each individual export separately? I have a CommonJS module directory that consists of a number of files that I would like to convert to ESM imports/exports. Currently, I have an index.js file that contains this: // this just re-exports everything that the sub-modules export module.exports = [ './mapConcurrent.js', './deferred.js', './utils.js', './rateMap.js', './concurrency.js', './retry.js', ].reduce((obj

问题 How do you re-export the exports from multiple files in an ESM module without listing each individual export separately? I have a CommonJS module directory that consists of a number of files that I would like to convert to ESM imports/exports. Currently, I have an index.js file that contains this: // this just re-exports everything that the sub-modules export module.exports = [ './mapConcurrent.js', './deferred.js', './utils.js', './rateMap.js', './concurrency.js', './retry.js', ].reduce((obj

问题 I'm trying to set up a webpack config in a server enviroment that can output a bundle from a remote source. The source is a .js file and will be fetched through GET-requests. Is this possible? Remote file - example.com/file.js export default () => console.log('Hello world'); Webpack with pseudocode const remoteSource = await fetchFromURL('http://example.com/file.js'); webpack({ entry: remoteSource, output: { filename: 'output.js', path: path.resolve(__dirname, 'src'), libraryTarget: "umd", }

问题 i had tried to implement to upload the multiple images but when i upload an image the image get randomly uploaded without cropping .so i had implemented react-easy-crop so when i tried to open the image cropping part is not opening i have tried the state method to open image but i am not understanding where i am getting wrong . i had implement image cropping before uploading an image . using react-easy-crop but its directly uploading the image without cropping below is the sandbox and code.