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

Standard library

'use strict';
var PROPER_FUNCTION_NAME = require('../internals/function-name').PROPER;
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
      || (PROPER_FUNCTION_NAME && whitespaces[METHOD_NAME].name !== METHOD_NAME);
  });
};