source-map-explorer | Analyze and debug space usage through source maps | Code Inspection library
kandi X-RAY | source-map-explorer Summary
kandi X-RAY | source-map-explorer Summary
Analyze and debug JavaScript (or Sass or LESS) code bloat through source maps. The source map explorer determines which file each byte in your minified code came from. It shows you a treemap visualization to help you debug where all the code is coming from. Check out this Chrome Developer video (3:25) for a demo of the tool in action.
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source-map-explorer Examples and Code Snippets
Lines of Code : 13License : Strong Copyleft (CC BY-SA 4.0)
Copynpm install -D source-map-explorer
module.exports = {
productionBrowserSourceMaps: true
// ...Other configs if any.
}
"scripts": {
"analyze": "source-map-explorer .next/static/**/*.jsnpx webpack -p src/main.js --production --devtool source-map
npx rollup -i src/main.js -o dist/bundle.js -m
npx source-map-explorer dist/main.js
npm i -g source-map-explorer
source-map-explorer 'build/static/js/*.js'.
npm install -g source-map-explorer
source-map-explorer 0.xxx.chunck.js
Community Discussions
Trending Discussions on source-map-explorer
QUESTION
Following the https://react-bootstrap.github.io/getting-started/introduction#importing-components I've changed all imports in my project from import * as rb from 'react-bootstrap' to import from 'react-bootstrap/. I was expecting this would lead to a smaller bundle size, but after analysing via source-map-explorer the bundle size is pretty much the same (it even grew by unnoticeable amount). The project was created by create-react-app, react v17.0.2 and react-bootstrap v2.2.2.
ANSWER
Answered 2022-Apr-04 at 12:06Create React App supports tree shaking, which is automatically configured. Tree shaking removes unused code from the packages: https://en.wikipedia.org/wiki/Tree_shaking.
This results in the same size, because in the end there is no difference between using only some components or using the whole package and stripping unused parts of it.
QUESTION
I am trying to deploy my first React.js app on Heroku. Everything seems to work fine link to app except the most important part - the Express.js REST API that I use to fetch data from my Postgres database and Stripe API is functioning normally on localhost, but when I deploy the app on Heroku, all the API routes I am trying to access return the same syntax error - Unexpected token < in JSON at position 0.
I understand that the issue is tied to how my app routes to the API. In other words, the fetch request is not able to get to the needed endpoint and thus return this syntax error, but I can't pinpoint exactly where is the issue - am I missing a '/' somewhere, have I incorrectly set up my environment variables, etc.?
Has someone had a similar issue or maybe someone can spot the issue in my code down below?
package.json
...ANSWER
Answered 2022-Feb-25 at 13:52I noticed that this question of mine is still unanswered.
The issue, in the end, was that I was trying to use the Heroku free plan, but my app was too "big" for that so I either needed to split the back-end and front-end into two apps or to use a paid plan.
In the end, I actually changed my hosting service provider from Heroku to Digital Ocean. The app is still on their servers and works now - https://dj-bbq-i5gdc.ondigitalocean.app/ .
QUESTION
I'm just trying to get a DOT diagram to render. I have followed the documentation (https://github.com/magjac/d3-graphviz) to add the package and use it but when I try to run the application and access the DOT diagram, nothing renders and the the following error is thrown:
ERROR TypeError: Cannot read property '__graphviz__' of null. console error message
The app is an Angular 12 project here is the dependency list that is used
...ANSWER
Answered 2022-Jan-27 at 12:10UPDATE: I found the answer. The error is being thrown because the dom object (div) is not rendered yet when rendering the diagram. When I use ngAfterViewInit instead of ngOnInit it works!
I'm facing the same problem. If I don't use the the typescript but just copy the script tags and example script in the body of my html file (so replace the angular app root) it works fine, but if I use it in the body alongside my app root it throws this error. Have you maybe found a solution?
As an example:
this works in my index.html
QUESTION
while working on an Angular 12 application with PrimeNg, I have come across a peculiar scenario. When I generate a build and try to check the bundles with source-map-explorer (we are not using web-pack), I see a 16% chunk saying "no source":
Can someone tell me from where this chunk is coming? Any help is welcome.
...ANSWER
Answered 2021-Aug-19 at 09:58On further investigation, this "no source" chunk was found to be coming from PrimeNg library. As such, we cannot do anything about it right now.
QUESTION
We recently upgraded to Angular 12 and "typescript": "4.2.4". I use WebStorm 2020.3.
My template files suddenly fail to recognize pipes such as date or async and public component properties (that were previously recognized and I'm not the only member of my team impacted this way). But, the app compiles without issues.
This is my first time asking a question here. Any help is greatly appreciated.
package.json dependencies:
...ANSWER
Answered 2021-Jul-11 at 15:34I was able to resolve the issue by running rm -rf node_modules && npm i on my project file in the terminal.
QUESTION
I want to analyze my Next.js build with source-map-explorer. Can someone please help me with the script?
With React (CRA), I use the following script:
...ANSWER
Answered 2021-Jun-11 at 06:35You'll need to enable source map generation for the production build in your next.config.js file as it's disabled by default.
QUESTION
I want to read crashlytics reports from react-native app but it's not readable at all in firebase console. Example crash from Android looks like this:
...ANSWER
Answered 2021-Jun-08 at 10:24You just need to use
QUESTION
I have been developing a frontend app using React (v16.44.0, cannot upgrade to v17 yet due to a dependency), react-scripts v3.4.4, Typescript (v3.9.9) and React-Bootstrap (v1.5.1) for a few months and all is going well.
However, react-scripts have been updated recently to a v4, and upgrading breaks the whole app. I am concerned with securities issues with react-scripts v3. I also would like to upgrade Typescript to v4+, there seem to be an incompatibility btw Typescript 4 and react-scripts 3 related to eslint. Various deprecation warnings are also stacking up.
When I enable react-scripts v4.0.3, run npm start to launch the development server, Firefox (v78.8) throws:
"ReferenceError: SharedArrayBuffer is not defined" in "node_modules/webidl-conversions/lib/index.js:347".
Apparently webidl-conversions is required by bootstrap. I have searched about the SharedArrayBuffer issue, apparently it requires enabling additional headers, but I could not find how to add them using the npm start webserver.
[Edit: upgraded Firefox to v86, still have the issue but I have not tried to configure it yet.]
If I try with Chrome (v89), I have:
"TypeError: Cannot convert undefined or null to object" on "node_modules/whatwg-url/dist/utils.js:48"
which also seem to be required by Bootstrap.
I do not have a dependency on Bootstrap per se, I use the react-bootstrap implementation. However, I use bootstrap-scss for the (S)CSS part.
I can upload full stack traces if needed. Here is my package.json:
...ANSWER
Answered 2021-Mar-10 at 11:39Did you apply each migration described in the changelog?
They also suggest you delete node_modules if you break your app when updating from 3.4 to 4.
QUESTION
I have a React app created with CRA, it compiles and runs fine. But production build made with yarn buld and served with serve -s build shows following error in console:
ANSWER
Answered 2020-Dec-24 at 14:26After long hours of trial I finally made it work with this trick:
Replaced import statement from
QUESTION
I'm working with custom components from component framework and whenever I try to upload the file into CRM it says it's too heavy. I checked and it takes 7MB which is crazy since it shouldn't. I'm using FluentUI and I checked my imports to see if there is anything importing something too big but it doesn't look like it. Anyone could recommend me something that maybe I can found useful in order to check the file size?
I tried using source-map and source-map-explorer but I had an error everytime (the command during build wouldn't generate a json or similar errors).
...ANSWER
Answered 2020-Dec-04 at 22:08You have to take care of few things while you are importing FluentUI controls in your index.ts of PCF control.
You should be importing the controls in granular fashion - ie. import only needed controls. Otherwise bundle.js size will be huge like yours. Import the necessary controls using @fluentui/react/lib/… rather than the whole @fluentui/react.
And try building in Release mode instead of Debug. Read more
You can check the out and binfolder contents.
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