node.js

问题 I have just installed the node version 12.16.1 the LTS and angular cli version 9.0.3. At the time of creating new project with cli all files in root folder are generating but it is stuck at the part of installing node packages. Is anybody facing the same issue? Please help how can we resolve it. 回答1: Every time you create a new project the angular suppose to download huge chunks of file of size around 500mb, all the time that is been taken is actually the time taken to download those file in

问题 I'm building vscode using the instructions here https://github.com/Microsoft/vscode/wiki/How-to-Contribute#build-and-run-from-source. When I get to the yarn run watch command, it hangs at Finished compilation with 0 errors after 54926 ms . What's going on? nodejs: 8.9.4 yarn 1.3.2 npm 5.6.0 回答1: I was running yarn run watch and encountered this problem. I checked with du -s in the repo's folder a few times: no change, so I killed the command. After killing yarn run watch I then ran yarn watch

问题 I'm building vscode using the instructions here https://github.com/Microsoft/vscode/wiki/How-to-Contribute#build-and-run-from-source. When I get to the yarn run watch command, it hangs at Finished compilation with 0 errors after 54926 ms . What's going on? nodejs: 8.9.4 yarn 1.3.2 npm 5.6.0 回答1: I was running yarn run watch and encountered this problem. I checked with du -s in the repo's folder a few times: no change, so I killed the command. After killing yarn run watch I then ran yarn watch

问题 I need to read a file from online url and process it in multithread and write it in another output . https://www.w3.org/TR/PNG/iso_8859-1.txt Solution I tried : If cluster is master I forked new thread based on cpu count .and outside for loop read the file. I have to make sure each thread is given certain lines to print in output file as same line should not be repeated. I am not sure if this is correct way to do it. Please share your answers or suggestion. 回答1: Could you elaborate why you

问题 Trying a little hack here with cloud functions but can't seem to figure out what the issue is. I'm currently using now.sh to host serverless functions and would like to call 1 function from another. Lets say I have 2 functions declared fetchData & setData . When the setData function is called it processes some data and then calls the fetchData function. export const setData = async (req: Request, res: Response) => { await axios.post( fetchDataEndpointUrl, { params: { key, }, }, ); return res

问题 I want to make the ORDER BY dynamic in mysql query in node.js. But it's not working. I console.log the multiQuery variable and everything looks perfect but when ran it simply doesn't work. This is what I have: var order, multiQuery; if(req.query.o){ order = req.query.o; }else{ order = "views"; } multiQuery = 'SELECT COUNT(Category) AS Count FROM posts;'; //PROBLEM LIES HERE IN THE SECOND ONE multiQuery += 'SELECT ID, Title, Img_path, Category, Views FROM posts WHERE Category = ' + connection

问题 im wondering how to define global constants in node js. My approach so far: constants.js: module.exports = Object.freeze({ MY_CONST: 'const one'}); controller.js: var const = require(./common/constants/constants.js); console.log(const.MY_CONST) ==> const one const.MY_CONST ='something' console.log(const.MY_CONST) ==> const one Ok thats fine so far. But then i wanted to structure my constants like this: constants.js: module.exports = Object.freeze({ MY_TOPIC: { MY_CONST: 'const one' } });

问题 I saw a codebase which was using joi library like this: function f(a, b) { // ... } f.schema = { a: Joi.string().uuid().required(), b: Joi.number() } And then the f.schema property wasn't referenced anywhere else. Is there some framework which performs automatic validation of function arguments using the schema property? Googling this didn't bring up anything. 回答1: I don't think it is possible to do exactly what you are showing here, since overloading of function call is impossible in

问题 I am coding an app in which there are some weather sensors that send air's temperature and humidity to the server every 5 minutes. I would like to draw a chart of how the temperature and humidity change i.e overnight. My idea is to draw the chart basing on data from last 24 hours. I cannot figure it out by myself, so I thought maybe I could seek help here. Of course, each measurement document has a field called createdAt which has the timestamp of the moment it has been created. I need to

问题 I am using db-oracle module (node.js) to query the tables (SEARCH command). I am able to fetch the records successfully. I need to execute the stored procedure. Any idea how to execute a oracle stored procedure from node js code ? Can i execute through db-oracle module ? Or anyother module is available ? Note: The stored procedure returns multiple values, I need to capture that too. 回答1: You should be able to call that procedure from the .query method, like: var oracle = require('db-oracle');