chain.js | chain | Reactive Programming library
kandi X-RAY | chain.js Summary
kandi X-RAY | chain.js Summary
chain.js is a microframework for handling asynchronous JavaScript - 699 bytes gzipped. It comes with built-in methods for running functions sequentially or in parallel, and lets you define your own methods to handle complex logic (e.g load.js).
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QUESTION
I tried to add a devServer configuration into the babel.config.js file (Vue 3 project) and I get this error. Even when I copy the original code from the official site, it still reports this error.
The error:
...ANSWER
Answered 2020-Dec-31 at 02:15In a Vue CLI project, your Webpack configuration goes in vue.config.js in your project root, not babel.config.js. If that file doesn't exist, you should create it and put your devServer configuration in it.
From the docs:
vue.config.js is an optional config file that will be automatically loaded by @vue/cli-service if it's present in your project root (next to package.json). You can also use the vue field in package.json, but do note in that case you will be limited to JSON-compatible values only.
vue.config.js (Not babel.config.js)
QUESTION
Getting an error trying to load a page. Rails 6, Ruby 2.7.1. Webpacker for javascript and SCSS From the Terminal (similar to the Chrome Console error )
...ANSWER
Answered 2020-Dec-23 at 16:46Webpacker changed from using .babelrc to babel.config.js between major versions 3 and 4. (Here is a link to the changelog where that is mentioned.) If this error pops up after the upgrade, it likely means that the legacy .babelrc file is still in the root of the Rails app. The solution is to delete .babelrc.
QUESTION
I have a rails app and I want to send changes I made to the staging environment on the heroku server (cli: git push staging master). However, when I push my code I get the following error.
ANSWER
Answered 2020-Nov-03 at 20:14The NODE_ENV and RAILS_ENV environment variables should be set one of three values: development, test, or production.
Your staging and production servers should run with these variables set to production.
If you need to point these production servers at a different service, or configure them differently, use more environment variables to configure them (e.g. - DATABASE_URL will be different on your staging server than on your production server).
The idea is that staging is a production-like environment. It's your proving ground for new features, before you deploy them to production servers.
QUESTION
I was working on my react application with set up babel. Unfortunately while setting it up using yarn and when I build my bundle.js file, I run into some problems:
ANSWER
Answered 2020-May-19 at 10:43You need to install @babel/preset-env instead of babel-preset-env.
I believe that most babel modules now live under the @babel org
Edit:
also IMHO the correct syntax for the babelrc file should be
QUESTION
When I run command 'npm run build', I get this error:
ERROR in ./src/app.js Module build failed (from ./node_modules/babel-loader/lib/index.js): Error: Cannot find module '@babel/preset-present-env' from 'F:\Project\frontend-project-lvl1' at Function.resolveSync [as sync] (F:\Project\frontend-project-lvl1\node_modules\resolve\lib\sync.js:89:15) at resolveStandardizedName (F:\Project\frontend-project-lvl1\node_modules@babel\core\lib\config\files\plugins.js:101:31) at resolvePreset (F:\Project\frontend-project-lvl1\node_modules@babel\core\lib\config\files\plugins.js:58:10) at loadPreset (F:\Project\frontend-project-lvl1\node_modules@babel\core\lib\config\files\plugins.js:77:20) at createDescriptor (F:\Project\frontend-project-lvl1\node_modules@babel\core\lib\config\config-descriptors.js:154:9) at F:\Project\frontend-project-lvl1\node_modules@babel\core\lib\config\config-descriptors.js:109:50 at Array.map () at createDescriptors (F:\Project\frontend-project-lvl1\node_modules@babel\core\lib\config\config-descriptors.js:109:29) at createPresetDescriptors (F:\Project\frontend-project-lvl1\node_modules@babel\core\lib\config\config-descriptors.js:101:10) at presets (F:\Project\frontend-project-lvl1\node_modules@babel\core\lib\config\config-descriptors.js:47:19) at mergeChainOpts (F:\Project\frontend-project-lvl1\node_modules@babel\core\lib\config\config-chain.js:320:26) at F:\Project\frontend-project-lvl1\node_modules@babel\core\lib\config\config-chain.js:283:7 at Generator.next () at buildRootChain (F:\Project\frontend-project-lvl1\node_modules@babel\core\lib\config\config-chain.js:90:27) at buildRootChain.next () at loadPrivatePartialConfig (F:\Project\frontend-project-lvl1\node_modules@babel\core\lib\config\partial.js:95:62) at loadPrivatePartialConfig.next () at Function. (F:\Project\frontend-project-lvl1\node_modules@babel\core\lib\config\partial.js:120:25) at Generator.next () at evaluateSync (F:\Project\frontend-project-lvl1\node_modules\gensync\index.js:244:28) at Function.sync (F:\Project\frontend-project-lvl1\node_modules\gensync\index.js:84:14) at Object. (F:\Project\frontend-project-lvl1\node_modules@babel\core\lib\config\index.js:41:61) at Object. (F:\Project\frontend-project-lvl1\node_modules\babel-loader\lib\index.js:151:26) at Generator.next () at asyncGeneratorStep (F:\Project\frontend-project-lvl1\node_modules\babel-loader\lib\index.js:3:103) at _next (F:\Project\frontend-project-lvl1\node_modules\babel-loader\lib\index.js:5:194) at F:\Project\frontend-project-lvl1\node_modules\babel-loader\lib\index.js:5:364 at new Promise () at Object. (F:\Project\frontend-project-lvl1\node_modules\babel-loader\lib\index.js:5:97) at Object._loader (F:\Project\frontend-project-lvl1\node_modules\babel-loader\lib\index.js:231:18) at Object.loader (F:\Project\frontend-project-lvl1\node_modules\babel-loader\lib\index.js:64:18) at Object. (F:\Project\frontend-project-lvl1\node_modules\babel-loader\lib\index.js:59:12)
My config is: package.json
...ANSWER
Answered 2020-May-16 at 14:45Change ['@babel/present-env', { to ['@babel/preset-env', in your babel.config
QUESTION
I am trying to write this project about blockchain it has functions for getting blocks and gets the chain also for adding a new block. What I am struggling with is adding a new block in the chain using API. now the program is adding the block in that way:
const BChain = new bs.BlockChain();
BChain.addBlock({sender: "Customer-A", reciver: "Supplier-4", amount: 100});
BlockChain.js
...ANSWER
Answered 2020-Apr-04 at 07:14You do not add any block to blockchain via the api, you make a request to the api endpoint and blockchain will MINE the block. What I mean is you do not send any data. For adding something, you make a "POST" request but in this case you make a get request to the endpoint.
I think your approach is wrong. Because you define a BLOCK class and BLOCKCHAIN class. Those are different classes however mining is a method inside a blockchain. Since every instance of Blockchain class will have this method, it is better to put in porototype.
QUESTION
I have the following code I try to cover:
...ANSWER
Answered 2020-Feb-13 at 12:11
My two cents is that mocking the randomNumber dependency is not the right approach to test this functionality.
However, I'm going to answer the primary question here and see how we can make that test pass. Then will get to my additional thoughts about a better way to test this in a future update.
Asserting againstrandomNumber call
Intercept the import & mock
The actual issue with the code is that the randomNumber mock function is hanging in the air. As the error suggests, it's not being called.
Missing part is to intercept the module import and make it so that an outside call to Utils.randomNumber triggers the mock function; so that we can then assert against it. Here's how to intercept the Utils import & mock it:
QUESTION
I am trying to run my react native project via this command: npx react-native run-android
My project was correctly build:
...ANSWER
Answered 2020-Jan-29 at 09:46Resolved problem. I was forced to install an old version of react native npm install react-native@0.49
this fixed my problem Thanks for your help
QUESTION
I have created new project in laravel 6 and after installing npm I ran npm run watch, I'm getting this error.
ANSWER
Answered 2020-Jan-13 at 10:02add in packege.json
"@babel/preset-env": "^7.2.0"
QUESTION
I recently upgraded redux-api-middleware from 2.3.0 to 3.0.1 When running my tests with jest@22.2.1 I get this ReferenceError:
ANSWER
Answered 2019-Jan-04 at 19:06This happens because Jest runs inside of Node.js, which doesn't have a global fetch(). You can fix this by installing isomorphic-fetch and adding this to your Jest setupFiles:
require('isomorphic-fetch');
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