Convert hyphens to camel case (camelCase)

Question

With regex (i assume) or some other method, how can i convert things like:

marker-image or my-example-setting to markerImage o

Answer 1

This doesn't scream out for a RegExp to me. Personally I try to avoid regular expressions when simple string and array methods will suffice:

let upFirst = word => 
  word[0].toUpperCase() + word.toLowerCase().slice(1)

let camelize = text => {
  let words = text.split(/[-_]/g) // ok one simple regexp.
  return words[0].toLowerCase() + words.slice(1).map(upFirst)
}

camelize('marker-image') // markerImage