將鍵值對的JSON數組轉換為Javascript中的JSON字符串數組

Question

所以我有一個JSON對象[{"key1":"val1","key2":"val2"},{"key1":"val1","key2":"val2"}]

我基本上需要刪除鍵，以便輸出看起來像Javascript中的[["val1","val2"],["val1","val2"]] 。

除了遍歷數組然后遍歷所有屬性並映射到新的JSON對象之外，還有什么方法可以從對象中刪除鍵，然后將值轉換為數組中的列表？

請不要使用字符串拼接/正則表達式。

謝謝。

Answer 1

使用ES2015（ES6）

const arr = [{"key1":"val1","key2":"val2"},{"key1":"val1","key2":"val2"}]
arr.map(o => Object.values(o));

看到

• Array.map
• Object.values

Answer 2

如果您仍然需要舊的瀏覽器支持-ES6之前的版本

 var arr = [{"key1":"val1","key2":"val2"},{"key1":"val1","key2":"val2"}]; arr = arr.map(function(o){ var a = []; for(var i in o){ a.push(o[i]) } return a; }); console.log(arr); 

Answer 3

帶有Array#map普通ES5

 var array = [{ key1: "val1", key2: "val2" },{ key1: "val1", key2: "val2" }], mapped = array.map(function (o) { return Object.keys(o).map(function (k) { return o[k]; }); }); console.log(mapped); 

 .as-console-wrapper { max-height: 100% !important; top: 0; } 

Answer 4

您需要遍歷對象並創建新數組。

for (var i = 0; i < yourobject.length; i++) {
    var myArray = [];
    for (var key in yourobject) {
         myArray.push(yourobject[key]
    }
    console.log(myArray)
}

Answer 5

應該這樣做：

const arr = [{"key1":"val1","key2":"val2"},{"key1":"val1","key2":"val2"}];

const newArr = arr.map(obj => Object.values(obj));