Var arr2 = Array(''a",6,7,true); console.log(arr2); 注意:var arr2 = Array(6); console.log(arr2); //输出的是一个长度为6的空数组。 2.3、直接赋值 var arr3 = ['aa',6,5,true]; 三、数组中的每个元素都是数组元素,length:代表数组的长度。 四、可以通过下标
2.2、省略new运算符创建数组 Var arr2 = Array(''a",6,7,true); console.log(arr2); 注意:var arr2 = Array(6); console.log(arr2); //输出的是一个长度为6的空数组。 2.3、直接赋值 var arr3 = ['aa',6,5,true]; 三、数组中的每个元素都是数组元素,length:代表数组的长度。 四、可以通过...
If the returned promise fulfills, it is fulfilled with an array of the values from the fulfilled promises in same order as defined in the iterable. If the returned promise rejects, it is rejected with the reason from the first promise in the iterable that rejected. This method can be ...