摘要:
rest 参数 排序 扩展运算符 function push(array, ...items){ array.push(...items)}var arr = [1,2,3]push(arr, 4,5,6);console.log(arr); //[1,2,3,4,5,6] const [first 阅读全文
摘要:
var arrayLike = { '0': 'a', '1': 'b', '2': 'c', 'length': 3 } var arr1 = [].slice.call(arrayLike); console.log(arr1); //['a','b','c'] var arr2 = Array.from(arrayLike); console.log(arr2); ... 阅读全文