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kotlinlang

Hi Can anybody explain the difference between 
using field `@field:JsonProperty("foo")` and without field `@JsonProperty("foo")`

When should i use when

Second one annotate element depending on context

Check official docs
<https://kotlinlang.org/docs/reference/annotations.html#annotation-use-site-targets>
```
If you don't specify a use-site target, the target is chosen according to the @Target annotation of the annotation being used. If there are multiple applicable targets, the first applicable target from the following list is used:

param;
property;
field.```