precompile angular js template to speed up application startup

Question

I have a big angular application with 5 templates included in the main page using

 <script type="text/ng-template" id="/myMainTemplate.html">...</script>
 <script type="text/ng-template" id="/myTemplatePage2.html">...</script>
 <script type="text/ng-template" id="/myTemplatePage3.html">...</script>
 <script type="text/ng-template" id="/myTemplatePage4.html">...</script>

However, my application takes a lot of time to startup.

Removing the templates 2/3/4 fix it but of course broke the app, my guess is that angularjs takes too much time to compile the 5 templates.

Is there a way to pre-compile angularjs templates, for example with nodejs or something similar (the same way we can compile templates with handlebar maybe) ?

If I understand well the $compile instruction, the idea would be to move the instruction $compile(myTemplate) in the server-side inside of the client

score 8 · Answer 1 · answered Mar 04 '14 at 14:05

8

Take a look at the grunt-html2js task.

https://github.com/karlgoldstein/grunt-html2js

It converts plain Angular HTML templates to JavaScript ready for concatenating into your main app bundle. Once the templates are in your app bundle they'll be primed in Angular's template cache so they load instantly.

answered Mar 04 '14 at 14:05

Jed Richards

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Unfortunately, it doesn't convert them to JavaScript functions, but to Strings. $compile still needs to run. This isn't true AOT. – superluminary May 04 '18 at 10:48
1

This is answer is from 2014 dude, AOT compilation wasn't even a thing then :) – Jed Richards May 04 '18 at 14:35
I know. I was still hoping AOT might be possible in Angular JS now. – superluminary May 09 '18 at 09:57

score 4 · Accepted Answer · answered Feb 06 '14 at 17:46

It appears I was wrong, what takes time isn't to compile the templates. The browser is just slow to load all the page and basically the document.ready event took some time to be fired.

To fix this I only include my main template <script type="text/ng-template" id="/myMainTemplate.html">...</script> in the page, and I load the other templates using an asynch $http call, based on this solution : https://gist.github.com/vojtajina/3354046

precompile angular js template to speed up application startup

2 Answers2