Array。prototype。push
單個值新增到現有陣列末尾:
var arr = [“頭條”, “@”, “新浪潮”];arr。push(“新增我”);console。log(arr);
單個值新增到現有陣列末尾
單個值新增到現有陣列
開頭
:
var arr = [“頭條”, “@”, “新浪潮”];arr。unshift(“新增我到頭部”);console。log(arr);
單個值新增到現有陣列
多個值附加到陣列末尾中:
var arr = [“頭條”, “@”, “新浪潮”];arr。push(“新增我”, “新增你”);console。log(arr);
多個值附加到陣列中
將一個數組的項新增到另一個數組
let arr = [“頭條”, “@”, “新浪潮”];let waitToAdd = [“新增我”, “新增你”];arr = arr。concat(waitToAdd);console。log(arr);
Es6中的寫法
let arr = [“頭條”, “@”, “新浪潮”];arr = [。。。arr, “新增我”];console。log(arr);
es6 尾部加單項
let arr = [“頭條”, “@”, “新浪潮”];let waitToAdd = [“新增我”, “新增你”];arr = [。。。arr, 。。。waitToAdd];console。log(arr);
es6數組合並