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Include notes about entity_ids that start with a number (#2531)

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* Include notes about entity_ids that start with a number

Based on info discovered by @armills in forum thread:  https://community.home-assistant.io/t/google-maps-as-a-card/9382/40

Wanted to update the docs as I had never run into this before nor had I seen it in the docs.

* Updated based on input from armills

* Format as code
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rpitera 2017-05-01 05:15:24 -04:00 committed by Fabian Affolter
parent a7d3998b1b
commit d55ec3008e
1 changed files with 5 additions and 0 deletions
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source/_docs/configuration/templating.markdown
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@ -89,6 +89,11 @@ Home Assistant adds extensions to allow templates to access all of the current s
[strp-format]: https://docs.python.org/3.4/library/datetime.html#strftime-and-strptime-behavior [strp-format]: https://docs.python.org/3.4/library/datetime.html#strftime-and-strptime-behavior
<p class='note warning'>
If your template uses an `entity_id` that begins with a number (example: `states.device_tracker.2008_gmc`) you must use a bracket syntax to avoid errors caused by rendering the `entity_id` improperly. In the example given, the correct syntax for the device tracker would be: `states.device_tracker['2008_gmc']`
</p>
## {% linkable_title Examples %} ## {% linkable_title Examples %}
### {% linkable_title States %} ### {% linkable_title States %}