标签：sub function ret highlight 扩展 ati console asc turn
console.log(Array.prototype.sort)//ƒ substring() { [native code] }
console.log(String.prototype.substring)
//字符串扩展
String.prototype.addstring = function(){
return this+‘字符串扩展‘
}
console.log(‘ff‘.addstring())//ff字符串扩展
标签：sub function ret highlight 扩展 ati console asc turn
原文地址：https://www.cnblogs.com/whlBooK/p/10704683.html
