core-js/internals/forced-string-trim-method.js

Standard library

var fails = require('../internals/fails');
var whitespaces = require('../internals/whitespaces');
var non = '\u200b\u0085\u180e';

// check that a method works with the correct list
// of whitespaces and has a correct name
module.exports = function (METHOD_NAME) {
  return fails(function () {
    return !!whitespaces[METHOD_NAME]() || non[METHOD_NAME]() != non || whitespaces[METHOD_NAME].name !== METHOD_NAME;
  });
};