摘要:
遍历数组 //通过for of / for in 是下标 var arr=[3,4,5] for (var x of arr){ console.log(x) } 遍历map var map = new Map([["tom",100],["jack",90],["haha",80]]); for 阅读全文
摘要:
Map: var map = new Map([['tom', 100], ['jack', 90], ['rose', 80]]); var name = map.get('tom');//通过key获得value map.set('admin', 123456);//新增或修改 map.dele 阅读全文