yhtml5-test/demo/node_modules/core-js/library/modules/$.to-integer.js

A test framework for front-end projects

// 7.1.4 ToInteger
var ceil  = Math.ceil
  , floor = Math.floor;
module.exports = function(it){
  return isNaN(it = +it) ? 0 : (it > 0 ? floor : ceil)(it);
};