Jasper Boeijenga

Senior web developer

3 years at Essent

Rachèl Heimbach

Software Engineer

1.5 years at Essent

Requirements

• iOS and Android application
• Native look and feel
• UX lab testing with user groups
• Adapt to design changes easily

Native, Hybrid & HTML5 applications

Single platform

Multiplatform

Full native capability

Partial native capability

IT landscape

Angular

Sneak preview

Manage energy products

Early stage

Performance

Issues

Boot time 

• Source code not optimized
• Too much IO
• Performance loss

8-15s?!

Angular AoT

Ahead of Time compilation

Breaking changes

2.0.0-RC

Application restructuring

Lazy loading

Free performance boost

Upgrade

Boot time

8-15s

3-6s

AoT

Lazy

{N}-NG

Back button

• Timeline ListView

2-4s?!

• ScrollView alternative due to performance issues ListView.
• Timeline size outgrew ScrollView's capabilities.

• New      unlocked better ListView perfomance.
• Rewrite timeline before release.

Result

Slack

In the early stage we got a lot of help from the Nativescript community through the slack channel

Plugins & external dependencies

Plugins

github.com/Essent

npmjs.com/org/essent