Angular Performance

[Neha Yargal]

Hi There,

I need help to improve the performance of an angular application. It is taking Long time to load initially. We have already Optimized API's. Considering to minimize Js. I will appreciate if someone helps to look at other factors to improve performance.

Thank you

Neha

[Shashwat]

Hi Neha,

Please check the size of the dist folder and at the time of loading check the size of vendor-es2015xxx.js, 6-es2015xxxx.js files. If the file size is big use this command for build npm run env -s && ng build --prod --aot --vendor-chunk --common-chunk --delete-output-path --buildOptimizer

Regards,
Shashwat

[vamshi eega]

Hi 

As you said its taking a long time to load the file , so you can use lazy loading concept for creating components. by this when user visit your website , initially it load particular component later when user select particular item , use router for lazy loading at that time it loads another component instead of loading the file completely 

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[Sunny Vakil]

Hi Neha,

I highly recommend that check your every component and make sure that no unnecessary import there. 

Please avoid any unnecessary third party packages, consider aot.

Make use of maximum dumb/presentational components.

Regarding the 1st point, please make this setting in your settings.json, It will remove unused import on save and organize them. 

“editor.codeActionsOnSave”: {

      “source.organizeImports”: true

}

I hope it helps.

Thanks,

Sunny

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— Thanks & Regards
Sunny Vakil