How would you exclude moment.js locale in a proper way? #6137

kuncevic · 2017-05-01T06:39:34Z

Bug Report or Feature Request

[x ] question

Versions.

@angular/cli: 1.0.1
node: 7.8.0
os: win32 x64

Details

I've got the whole locale ended up in my bundle:

As I am not using --eject flag this solution moment/moment#2416 (comment) in not working for me.

I discovered this SO answer which is kind of not really works for me, getting like Error: Can't resolve './locale' in runtime.

Is there any proper solution with angular-cli to exclude the moment locale without --eject?

The text was updated successfully, but these errors were encountered:

alexciesielski · 2017-05-01T06:48:58Z

Just include the .min.js version which does not include any locales, and then include the locale you need.
This is what I've got:

"scripts": [
    "../node_modules/moment/min/moment.min.js",
    "../node_modules/moment/locale/pl.js",
]

Edit: Found out that my solution does not work, and in fact also includes all locales

kuncevic · 2017-05-01T08:05:33Z

@ciesielskico thanks for coming back so quick. As SO has already similar question but without the right answer for me so I just decided to ask here hoping to get the best help. Thanks a lot.

kuncevic · 2017-05-01T23:50:21Z

@ciesielskico is your bundle looking good after all?

By importing through the "scripts": [] and then doing import * as moment from 'moment'; just got multiple moments in a bundles - one in the vendor bundle with all locales(same as I initially got), and another one in a scripts bundle.

P.S
Anyway it is sounds like there is too much hassle of using current moment until the proper modular version will be released https://github.com/moment/moment/milestone/15. So currently just ended up of using https://github.com/ksloan/moment-mini which is works fine for me:

import * as moment from 'moment-mini';

kirillgroshkov · 2017-08-10T19:31:03Z

just missing typings for moment-min. Will probably fork and add myself..

alexciesielski · 2017-08-10T19:33:21Z

Please share if you do, I just found out I've got all moment locales as well.

kirillgroshkov · 2017-11-08T20:03:02Z

Forked with typings, enjoy:

https://github.com/kirillgroshkov/moment-mini-ts

npm i moment-mini-ts

import * as moment from 'moment-mini-ts'

Lakston · 2017-11-22T14:38:24Z

This looks very intersting !

How would you import specific locales this way ?

jesulink2514 · 2017-12-17T00:54:50Z

It's quite difficult to get ride of moment when some packages (like material2) depend on it :(

felipefialho · 2018-01-05T21:23:28Z

Can I import some locale on moment-mini?

petivagyok16 · 2018-02-20T14:13:30Z

@jesulink2514 Im facing with the same issue. Using material 2, but cannot use material-mini-ts due to dependency. Could you find any solution?

Brandinga · 2018-02-20T14:28:58Z

@petivagyok16
we are using a npm script after install, found somewhere ...

`
var globby = require('globby');
var rimraf = require('rimraf');

globby(['./node_modules/moment/locale/*', '!./node_modules/moment/locale/de.js', '!./node_modules/moment/locale/de-at.js', '!./node_modules/moment/locale/de-ch.js'])
.then(function then(paths) {
paths.map(function map(item) {
rimraf.sync(item);
});
});
`

TomDemulierChevret · 2018-05-09T11:29:25Z

There is a simplier solution if you want to exlude all locales, in src/tsconfig.app.json add this :

"compilerOptions": {
    "paths": {
      "moment": [
        "../node_modules/moment/min/moment.min.js"
      ]
    }
}

It will instruct the compiler to use the minified-without-locale bundle instead of building from the sources.

Why use this instead of moment-mini ?

Well the moment-min repo is not always up to date with the official moment repo, therefore you can be stuck on an old version
If you use other libraries that depend on moment (such as moment-timezone), by default it will bundle the full moment with locale into your app. The config above avoid this pitfall.

MikeDabrowski · 2018-05-30T10:53:15Z

@TomDemulierChevret
How Can I add just the locales I need ?

naveedahmed1 · 2018-06-12T00:21:40Z

@TomDemulierChevret thanks for sharing this. But I am receiving below warning when I build my app:

WARNING in ./node_modules/moment/min/moment.min.js
Module not found: Error: Can't resolve './locale' in 'D:\MyProject\node_modules\moment\min'

TomDemulierChevret · 2018-06-12T08:33:21Z

@MikeDabrowski I'm not sure, but you should just need to import the locales you need (see https://momentjs.com/docs/#/i18n/loading-into-browser/).

@naveedahmed1 I have the same warning but haven't faced any issue yet. As long as you don't use functionnality from moment that requires locales, this shouldn't be an problem.

maximpn · 2018-09-06T13:17:53Z

I tried @angular-builders/custom-webpack with the @angular/cli 6.1 and it works properly. I'm able to add IngorePlugin and there is no warnings in the console.

dreamdevil00 · 2018-09-10T03:37:46Z

@katzz0 ignore-plugin demo shows how to ignore all locale files, but how to preserve one, for example, 'fr'

dreamdevil00 · 2018-09-10T08:00:19Z

I found a solution in momentjs issues, then I tried it with @angular-builders/custom-webpack.
This is my config:

./extra-webpack.config.js

'use strict';

const webpack = require('webpack');

// https://webpack.js.org/plugins/context-replacement-plugin/
module.exports = {
  plugins: [new webpack.ContextReplacementPlugin(/moment[/\\]locale$/, /zh-cn/)]
};

and angular.json

...
 "architect": {
        "build": {
          "builder": "@angular-builders/custom-webpack:browser",
          "options": {
            "customWebpackConfig": {
              "path": "./extra-webpack.config.js",
              "replaceDuplicatePlugins": true,
              "mergeStrategies": {
                "externals": "prepend"
              }
            },
...

It works fine. You can select whatever locale you want.

Hope this will help you.

danieldiazastudillo · 2018-10-04T05:09:45Z

@dreamdevil00 Nice. One question that i can't figure out. The webpack devDependency must be aligned with the one used by Angular CLI or did you just used @latest for that?

dreamdevil00 · 2018-10-04T05:55:08Z

@danieldiazastudillo Just require webpack, needn't to install webpack as devdependency again.

DavidDon13 · 2018-10-23T14:28:35Z

I tried @angular-builders/custom-webpack with the @angular/cli 6.1 and it works properly. I'm able to add IngorePlugin and there is no warnings in the console.

how did you ignorePlugin warning? I'm using angular6 and haven't been able to suppress the ./locale warning

dreamdevil00 · 2018-10-24T06:39:44Z

@DavidDon13 Please use this solution solution

FrogMonkeyBird · 2018-10-26T06:59:37Z

For anyone else with this redundant-moment-weight-problem, I highly recommend using DayJS:
https://github.com/iamkun/dayjs
It has mostly the same functionality, but with at more modular approach, where you import the basic package (6 KB) and only what you need in chuncks after that.

I'm just gonna leave this here, in case anyone needs more persuasion:

felipefialho · 2018-10-26T13:54:10Z

@FrogMonkeyBird DayJS provide integration with Angular Material?

FrogMonkeyBird · 2018-10-30T07:49:40Z

@FrogMonkeyBird DayJS provide integration with Angular Material?

I have no idea, sorry - Not an expert in DayJS :)

CAspeling · 2018-11-02T02:26:08Z

There is a simplier solution if you want to exlude all locales, in src/tsconfig.app.json add this :
"compilerOptions": {
    "paths": {
      "moment": [
        "../node_modules/moment/min/moment.min.js"
      ]
    }
}

@Brandinga
Could I adjust this to also pull in just the single locale I want? I would love to find out how to make this work but am too new to tsconfig and angular cli to make the warning go away. Something like this?

"paths": {
      "moment": [
        "../node_modules/moment/min/moment.min.js"
        ,"../node_modules/moment/locale/en-au.js"
      ]
    }

rynop · 2018-11-20T23:09:08Z

For those of you who use moment-timezone there is a trick to reduce the size (if you can get away with 2012-2022 dates):

import * as moment from 'moment-timezone/builds/moment-timezone-with-data-2012-2022.min';

Note that you don't have to include moment separate from this. moment-timezone includes the moment implementation.

I wrote a blog post that ties all this stuff together, and also includes moment timezone.

ktsangop · 2019-06-06T11:21:21Z

There is a simplier solution if you want to exlude all locales, in src/tsconfig.app.json add this :
"compilerOptions": {
    "paths": {
      "moment": [
        "../node_modules/moment/min/moment.min.js"
      ]
    }
}
It will instruct the compiler to use the minified-without-locale bundle instead of building from the sources.

Why use this instead of moment-mini ?

Well the moment-min repo is not always up to date with the official moment repo, therefore you can be stuck on an old version

If you use other libraries that depend on moment (such as moment-timezone), by default it will bundle the full moment with locale into your app. The config above avoid this pitfall.

I have tried the solution above. I'm using moment-timezone, and see no difference in the bundle size. All locales are still bundled.

Sorry, but i'm confused, is this supposed to work with moment-timezone also or is it a fix only for projects that use the moment-js package.

Thanks in advance!

TomDemulierChevret · 2019-06-06T11:46:01Z

@ktsangop This is working with moment-timezone.

In one of my current projet I have this config :

"compilerOptions": {
    "paths": {
      "plotly.js": [
        "../node_modules/plotly.js/dist/plotly-basic.min.js"
      ],
      "moment": [
        "../node_modules/moment/min/moment.min.js"
      ],
      "moment-timezone": [
        "../node_modules/moment-timezone/builds/moment-timezone-with-data-2012-2022.min.js"
      ]
    }
}

Wich leads to these sizes once gziped :

moment => 16,67 KB
moment-timezone => 9,03 KB
plotly => 265,63 KB

Without the above config, I get :

moment => 71,76 KB
moment-timezone => 35,51 KB
plotly => 909,27 KB

As you can see, the difference is quite substantial. 😄

Sidenote

Plotly is one of the best (if not the best) chart library available : MIT license + nearly every possible chart type + reaaaaally deep customisation
But like every chart library it's bloated as f***.

If you want to use it (or any chart library), you should definitly include it in a lazy-loaded module and not in your root module.

ktsangop · 2019-06-06T12:32:51Z

@TomDemulierChevret Thank you so much for the response.
Unfortunately, still no difference in the bundle size...
btw, i use :

"moment-timezone": "0.5.21",
"@angular/core": "7.2.15",
"@angular/cli": "7.1.4",
"@angular/compiler-cli": "7.2.15",
"typescript": "3.2.4"

I build the project using this :
ng build --prod --stats.json
And use webpack-bundle-analyzer to analyze bundle size

TomDemulierChevret · 2019-06-06T12:47:12Z

My dependencies are quite similar to yours :

"moment-timezone": "^0.5.23",
"@angular/core": "7.2.8",
"@angular/cli": "^7.3.5",
"@angular/compiler-cli": "7.2.8",
"typescript": "3.2.4"

I also use webpack-bundle-analyzer (3.0.3) for the bundle.

There must be something wrong with your tsconfig.app.json file.
Can you post it entirely ?

ktsangop · 2019-06-06T12:51:08Z

BTW, i cannot apply the moment-timezone-with-data-2012-2022.min.js workaround, so i would like to remove just moment locale.

{
  "compileOnSave": false,
  "compilerOptions": {
    "baseUrl": "./",
    "outDir": "./dist/out-tsc",
    "sourceMap": true,
    "declaration": false,
    "module": "es2015",
    "moduleResolution": "node",
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "target": "es5",
    "paths": {
      "moment": [
        "../node_modules/moment/min/moment.min.js"
      ]
    },
    "typeRoots": [
      "node_modules/@types"
    ],
    "lib": [
      "es2017",
      "dom"
    ]
  }
}

ktsangop · 2019-06-12T14:20:45Z

Seems like i had another (internal) lib that was also dependent on moment...
I've managed to remove locales, from the other lib also, using the same config.
Now my bundles are finally smaller, thank you!
:)

madmurl0c · 2019-06-25T09:38:02Z

I managed to get moment.min.js loading but what is the best practice to lazy load the language that I want to use? I use Angular's i18n feature with one configuration per language (currently 'de' and 'en') which results in two apps (one for each language). I tried using the script: [] tag in the configurations to load the required language but that didn't work out.
Does someone know a fix?

khazaddoom · 2019-07-08T09:02:42Z

There is a simplier solution if you want to exlude all locales, in src/tsconfig.app.json add this :
"compilerOptions": {
    "paths": {
      "moment": [
        "../node_modules/moment/min/moment.min.js"
      ]
    }
}
It will instruct the compiler to use the minified-without-locale bundle instead of building from the sources.
Why use this instead of moment-mini ?

Well the moment-min repo is not always up to date with the official moment repo, therefore you can be stuck on an old version

If you use other libraries that depend on moment (such as moment-timezone), by default it will bundle the full moment with locale into your app. The config above avoid this pitfall.
I have tried the solution above. I'm using moment-timezone, and see no difference in the bundle size. All locales are still bundled.

Sorry, but i'm confused, is this supposed to work with moment-timezone also or is it a fix only for projects that use the moment-js package.

Thanks in advance!

Yes i too experienced same! Trying other approaches now...

keserwan · 2019-08-02T09:28:43Z

I did the dirty way :)
I tried all the above solutions with no luck.

I simply deleted the unwanted locales from "\node_modules\moment\locale", and everything went well in production.

1st, I created tools/delete-moment-locale.js:

var fs = require('fs');
rmDir = function(dirPath) {
try { var files = fs.readdirSync(dirPath); }
catch(e) { console.log(e); return; }
if (files.length > 0)
for (var i = 0; i < files.length; i++) {
var filePath = dirPath + '/' + files[i];

    if (files[i] === 'ar.js' || files[i] === 'en-gb.js'){continue;}//exclude required locales

    if (fs.statSync(filePath).isFile())
      fs.unlinkSync(filePath);
    else
      rmDir(filePath);
  }
//fs.rmdirSync(dirPath);

};
rmDir("node_modules/moment/locale");

2nd) I called this code before my npm run build code in package.json:

"build:ssr": "node tools/delete-moment-locale.js && ...

CAspeling · 2019-08-04T22:43:07Z

@keserwan this is the kind of tool they need to make that strips all except locales specified.

angular-automatic-lock-bot · 2019-09-09T19:41:57Z

This issue has been automatically locked due to inactivity.
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kuncevic closed this as completed May 1, 2017

urish mentioned this issue Dec 30, 2017

Question: should this library footprint adds 327 Kb to vendor chunk in angular cli build? urish/ngx-moment#185

Closed

evaletolab mentioned this issue Jan 16, 2018

major issues with moment karibou-ch/kng2-core#65

Closed

jvanderbiest mentioned this issue Sep 10, 2018

How to load only locales i want? moment/moment#2517

Closed

angular-automatic-lock-bot bot locked and limited conversation to collaborators Sep 9, 2019

How would you exclude moment.js locale in a proper way? #6137

How would you exclude moment.js locale in a proper way? #6137

Comments

kuncevic commented May 1, 2017 • edited

Bug Report or Feature Request

Versions.

Details

alexciesielski commented May 1, 2017 • edited

kuncevic commented May 1, 2017 • edited

kuncevic commented May 1, 2017 • edited

kirillgroshkov commented Aug 10, 2017

alexciesielski commented Aug 10, 2017 via email • edited

kirillgroshkov commented Nov 8, 2017

Lakston commented Nov 22, 2017

jesulink2514 commented Dec 17, 2017

felipefialho commented Jan 5, 2018

petivagyok16 commented Feb 20, 2018

Brandinga commented Feb 20, 2018 • edited

TomDemulierChevret commented May 9, 2018 • edited

MikeDabrowski commented May 30, 2018

naveedahmed1 commented Jun 12, 2018

TomDemulierChevret commented Jun 12, 2018

maximpn commented Sep 6, 2018 • edited

dreamdevil00 commented Sep 10, 2018

dreamdevil00 commented Sep 10, 2018

danieldiazastudillo commented Oct 4, 2018

dreamdevil00 commented Oct 4, 2018

DavidDon13 commented Oct 23, 2018

dreamdevil00 commented Oct 24, 2018

FrogMonkeyBird commented Oct 26, 2018 • edited

felipefialho commented Oct 26, 2018

FrogMonkeyBird commented Oct 30, 2018

CAspeling commented Nov 2, 2018 • edited

rynop commented Nov 20, 2018 • edited

ktsangop commented Jun 6, 2019

TomDemulierChevret commented Jun 6, 2019 • edited

Sidenote

ktsangop commented Jun 6, 2019

TomDemulierChevret commented Jun 6, 2019

ktsangop commented Jun 6, 2019

ktsangop commented Jun 12, 2019 • edited

madmurl0c commented Jun 25, 2019

khazaddoom commented Jul 8, 2019

keserwan commented Aug 2, 2019 • edited

CAspeling commented Aug 4, 2019

angular-automatic-lock-bot bot commented Sep 9, 2019

kuncevic commented May 1, 2017 •

edited

alexciesielski commented May 1, 2017 •

edited

kuncevic commented May 1, 2017 •

edited

kuncevic commented May 1, 2017 •

edited

alexciesielski commented Aug 10, 2017 via email •

edited

Brandinga commented Feb 20, 2018 •

edited

TomDemulierChevret commented May 9, 2018 •

edited

maximpn commented Sep 6, 2018 •

edited

FrogMonkeyBird commented Oct 26, 2018 •

edited

CAspeling commented Nov 2, 2018 •

edited

rynop commented Nov 20, 2018 •

edited

TomDemulierChevret commented Jun 6, 2019 •

edited

ktsangop commented Jun 12, 2019 •

edited

keserwan commented Aug 2, 2019 •

edited