摘要: Symbol 生成一个全局唯一的值。 let s = Symbol(); typeof s // "symbol" let s1 = Symbol('foo'); let s2 = Symbol('bar'); s1 // Symbol(foo) s2 // Symbol(bar) s1.toStr 阅读全文
posted @ 2020-09-03 17:36 氧化成风 阅读(102) 评论(0) 推荐(0)
摘要: function fruits(){} fruits.prototype = { color: "red", say: function(){ console.log("My color is " + this.color); } }; var another = { color: "yellow" 阅读全文
posted @ 2020-09-03 15:16 氧化成风 阅读(160) 评论(0) 推荐(0)