charlike/templates/node_modules/core-js/modules/_replacer.js

Small, fast, simple and streaming project scaffolder for myself, but not only. Supports hundreds of template engines through the @JSTransformers API or if you want custom `render` function passed through options

module.exports = function(regExp, replace){
  var replacer = replace === Object(replace) ? function(part){
    return replace[part];
  } : replace;
  return function(it){
    return String(it).replace(regExp, replacer);
  };
};