Here is my repo with live demo https://github.com/alechance/nuxt-lodash. I'm using Nuxt with Vuetify + lodash-es, when running npm run dev and reload my page I got a SyntaxError: Unexpected token export with export default isArray;
Imported files of lodash-es library are not transpiled by babel. To fix that, Nuxt.js provides option to manually specify files that should be transpiled via transpile option.
Add following code to build section of nuxt.config.js:
build: {
transpile: [
'lodash-es'
],
// Other build options
}
Related
I am a React JS Developer learning Nuxt JS - But I am failing to understand the way NPM libreries are imported and used in Nuxt 3 as plugins.
Console:
Failed to resolve import "C:/Users/Eigenaar/Desktop/nuxt-
course/first/plugins/v-tooltip.js" from
"virtual:nuxt:C\.....first\.nuxt\plugins\client.mjs"
plugins/test.js
import Vue from 'vue'
import VTooltip from 'v-tooltip'
Vue.use(VTooltip)
nuxt.config.ts
export default defineNuxtConfig({
modules: [
'#nuxtjs/tailwindcss'
],
plugins: ['~/plugins/v-tooltip.js'],
})
app.vue
<h2 v-tooltip="Show tooltip">Hover me!!</h2>
I have been following the official documentation but still getting error messages when trying to use third party NPM packages in general, is anybody having the same issue?
I am using Vue 3 and added highchartsjs according to the docs. I am getting this error:
✘ [ERROR] Could not resolve "highcharts"
node_modules/highcharts-vue/dist/highcharts-vue.min.js:1:90:
1 │ ...?module.exports=e(require("highcharts"),require("vue")):"functio...
╵ ~~~~~~~~~~~~
You can mark the path "highcharts" as external to exclude it from the bundle,
which will remove this error. You can also surround this "require" call with a
try/catch block to handle this failure at run-time instead of bundle-time.
I tried excluding it from bundle as suggested but it's not working:
vite.config.js
export default defineConfig({
...
build: {
rollupOptions: {
external: ['highcharts'],
}
},
})
This works:
export default defineConfig({
...
optimizeDeps: {
exclude: ['highcharts'],
}
})
Excluding highcharts via optimizeDeps.exclude would clear the error, but that would defeat your ultimate goal of using highcharts in your project. You'll notice that after using that config, your project still is not able to import highcharts. The error is indicating that your project is missing that dependency.
The solution would be to install highcharts:
npm install -S highcharts
demo
I've created a brand new project with npm init vite bar -- --template vue. I've done an npm install web3 and I can see my package-lock.json includes this package. My node_modules directory also includes the web3 modules.
So then I added this line to main.js:
import { createApp } from 'vue'
import App from './App.vue'
import Web3 from 'web3' <-- This line
createApp(App).mount('#app')
And I get the following error:
I don't understand what is going on here. I'm fairly new to using npm so I'm not super sure what to Google. The errors are coming from node_modules/web3/lib/index.js, node_modules/web3-core/lib/index.js, node_modules/web3-core-requestmanager/lib/index.js, and finally node_modules/util/util.js. I suspect it has to do with one of these:
I'm using Vue 3
I'm using Vue 3 Composition API
I'm using Vue 3 Composition API SFC <script setup> tag (but I imported it in main.js so I don't think it is this one)
web3js is in Typescript and my Vue3 project is not configured for Typescript
But as I am fairly new to JavaScript and Vue and Web3 I am not sure how to focus my Googling on this error. My background is Python, Go, Terraform. Basically the back end of the back end. Front end JavaScript is new to me.
How do I go about resolving this issue?
Option 1: Polyfill Node globals/modules
Polyfilling the Node globals and modules enables the web3 import to run in the browser:
Install the ESBuild plugins that polyfill Node globals/modules:
npm i -D #esbuild-plugins/node-globals-polyfill
npm i -D #esbuild-plugins/node-modules-polyfill
Configure optimizeDeps.esbuildOptions to use these ESBuild plugins.
Configure define to replace global with globalThis (the browser equivalent).
import { defineConfig } from 'vite'
import GlobalsPolyfills from '#esbuild-plugins/node-globals-polyfill'
import NodeModulesPolyfills from '#esbuild-plugins/node-modules-polyfill'
export default defineConfig({
⋮
optimizeDeps: {
esbuildOptions: {
2️⃣
plugins: [
NodeModulesPolyfills(),
GlobalsPolyfills({
process: true,
buffer: true,
}),
],
3️⃣
define: {
global: 'globalThis',
},
},
},
})
demo 1
Note: The polyfills add considerable size to the build output.
Option 2: Use pre-bundled script
web3 distributes a bundled script at web3/dist/web3.min.js, which can run in the browser without any configuration (listed as "pure js"). You could configure a resolve.alias to pull in that file:
import { defineConfig } from 'vite'
export default defineConfig({
⋮
resolve: {
alias: {
web3: 'web3/dist/web3.min.js',
},
// or
alias: [
{
find: 'web3',
replacement: 'web3/dist/web3.min.js',
},
],
},
})
demo 2
Note: This option produces 469.4 KiB smaller output than Option 1.
You can avoid the Uncaught ReferenceError: process is not defined error by adding this in your vite config
export default defineConfig({
// ...
define: {
'process.env': process.env
}
})
I found the best solution.
The problem is because you lose window.process variable, and process exists only on node, not the browser.
So you should inject it to browser when the app loads.
Add this line to your app:
window.process = {
...window.process,
};
I have started a new vue-cli project with
vue create -n tailwind-demo
? Please pick a preset: Manually select features
? Check the features needed for your project: Babel, TS, PWA, Vuex, Linter
? Use class-style component syntax? Yes
? Use Babel alongside TypeScript (required for modern mode, auto-detected polyfills, transpiling JSX)? Yes
? Pick a linter / formatter config: Prettier
? Pick additional lint features: Lint on save, Lint and fix on commit
? Where do you prefer placing config for Babel, ESLint, etc.? In dedicated config files
I have also add the following postcss.config.js:
module.exports = {
plugins: [
require("postcss-preset-env")({ stage: 0 }),
require("tailwindcss")(),
require("autoprefixer")()
]
};
When i run the yarn lint command it got the follow errors
error: Require statement not part of import statement (#typescript-eslint/no-var-requires) at postcss.config.js:3:5:
error: Require statement not part of import statement (#typescript-eslint/no-var-requires) at postcss.config.js:4:5:
error: Require statement not part of import statement (#typescript-eslint/no-var-requires) at postcss.config.js:5:5:
How can i import the plugins or how should i configure the eslint in Vue CLI for the postcss.config.js?
I have tried something like
import tailwindCss from "tailwindcss";
But i got a SyntaxError: Unexpected identifier while building.
It seems to work with the following postcss.config.js
module.exports = {
plugins: {
"postcss-preset-env": {
stage: 0
},
tailwindcss: {}
}
};
What is the correct way to import ractive and ractive-load to my rollup project? npm or github?
Currently I am using npm to install each one:
npm install --save-dev ractivejs/ractive
And
npm install --save-dev ractivejs/ractive-load
And I'm using rollup-plugin-commonjs with rollup-plugin-node-resolve to corretly bundle them (rollup.config.js in the end of the question):
import Ractive from 'ractive';
import load from 'ractive-load';
...
But it seems that ractive-load also imports other modules in its code, causing this error:
Error parsing /home/.../node_modules/rcu/src/make.js: 'import' and 'export' may only appear at the top level (2:0) in /home/.../node_modules/rcu/src/make.js
How can I correctly use Rollup and which are the right sources for this case (npm or github)?
Here is my rollup.config.js:
import commonjs from 'rollup-plugin-commonjs';
import nodeResolve from 'rollup-plugin-node-resolve';
export default {
entry: 'src/main.js',
plugins: [
nodeResolve({
jsnext: true,
main: true,
browser: true,
}),
commonjs({
sourceMap: false
}),
// uglify()
],
format: 'iife',
moduleName: 'Altiva',
dest: 'altiva.js'
};
ractive-load is intended to "read" link tags in the browser and then do AJAX requests for the component file, then it uses a library called rcu to convert the component files into usable javascript components.
What you need is a utility (that uses rcu or does equivalent work) to turn your component files into javascript files that you can run during build process then hand-off to rollup. Fortunately, it looks like there is a rollup plugin rollup-plugin-ractive designed to do just that:
rollup({
entry: 'src/main.js',
plugins: [
ractive({
// By default, all .html files are compiled
extensions: [ '.html', '.ract' ],
// You can restrict which files are compiled
// using `include` and `exclude`
include: 'src/components/**.html'
})
]
}).then(...)
There's also list of some of the available loaders here, among them are "plain vanilla js" variants as well.