将键值对的JSON数组转换为Javascript中的JSON字符串数组

Question

so i have a JSON Object [{"key1":"val1","key2":"val2"},{"key1":"val1","key2":"val2"}]

and i essentially need to remove the keys so the output looks like [["val1","val2"],["val1","val2"]] in Javascript.

short of iterating through the array and then iterating through all the properties and mapping to a new JSON object is there any way i can remove the keys from the object, and turn the values in to a list in an array?

please no string splicing/ regex.

Thanks.

Answer 1

Using ES2015 (ES6)

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

See

• Array.map
• Object.values

Answer 2

If you still need old browser support--pre ES6

 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

Plain ES5 with Array#map

 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

You need to loop over the object and make new arrays.

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

Answer 5

This should do it:

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

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