d3plus-common/es/src/prefix.js

/**
    @function prefix
    @desc Returns the appropriate CSS vendor prefix, given the current browser.
*/
export default function () {
  if ("-webkit-transform" in document.body.style) return "-webkit-";else if ("-moz-transform" in document.body.style) return "-moz-";else if ("-ms-transform" in document.body.style) return "-ms-";else if ("-o-transform" in document.body.style) return "-o-";else return "";
}