Adds labelOverlapSeparator option to customize default ' - '

[BenLayet]

When the range labels overlap the separator string is ' - '.
The problem is that this character can be interpreted as 'minus'.

Steps to reproduce

1. slider range with high value just above 0
   http://jsfiddle.net/04sr3ty0/1/

Expected behaviour

Should be able to tell if the high value is positive of negative

Actual behaviour

Looks like the range is -2 to -1 when in fact it is -2 to +1

I am happy to create a pull request to fix this minor issue

[ValentinH]

Hi @ben-henoida ,

I've never thought about this, but this makes sense! ^^

What character should we use in your opinion?

[BenLayet]

' .. ' is common enough to represent range : -2 .. 1
How about a making it an option ?

[ValentinH]

Yes let's make it an option and keep the default to be - so we don't make a breaking change. 👍 If you can make a PR for this, it would be awesome! ;)

[BenLayet]

PR created : #616

[ValentinH]

Released in https://github.com/angular-slider/angularjs-slider/releases/tag/6.5.0