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Introduce docs for arrays on env vars #706

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Oct 1, 2020
Merged

Introduce docs for arrays on env vars #706

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042e8b8
Introduce array support from env vars
ignasi35 Sep 16, 2020
d1e8e92
fix writeup
ignasi35 Oct 1, 2020
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14 changes: 14 additions & 0 deletions README.md
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Expand Up @@ -684,6 +684,20 @@ With this option enabled only environment variables starting with
i.e. The environment variable `CONFIG_FORCE_a_b__c___d` set the
configuration key `a.b-c_d`

### Set array values from env variables

Setting the value of array items from environment variables requires
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You mean a system property, not environment variables, right, from the example you give at the end?

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You're right, I fixed one occurrence but not the other.

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raised #710

specifing the index in the array for the value. So, while in HOCON
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specifying

you can set multiple values into an array or append to an array:

## HOCON
items = ["a", "b"]
items += "c"

using environment variables you specify the exact position:
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-Ditems.0="a" -Ditems.1="b"

### Concatenation

Values _on the same line_ are concatenated (for strings and
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