Question

在我的javascript函数中，我有两个单独的数组：

var row = ["var1","var2","var3"];
var col = ["res1","res2","res3"];

我会创建一个多维数组，如：

[[＆＃34; VAR1＆＃34;＆＃34; RES1＆＃34;]，[＆＃34; VAR2＆＃34;＆＃34; RES2＆＃34;]，[＆＃34; VAR3＆＃34;＆＃34; RES3＆＃34;]]

我试过了：

new Array(m).fill(new Array(n).fill(0));

或解决方案如：

var dict = [[]];
for (i = 0; i < descendents.length; i++) {
    e = descendents[i];
    dict[i] = dict[i][e.id]
    dict[i] = dict[i][e.value]
}

但结果对我不正确。我不知道如何实现这个

提前致谢

Answer 1

使用Array#map根据现有数据生成新数组。

＆＃13;

var row = ["var1", "var2", "var3"];
var col = ["res1", "res2", "res3"];
 
// iterate and generate new array based on row array element
// and fetch element from col using the same index
var res = row.map((v, i) => [v, col[i]]);

console.log(res)

＆＃13;

或者Array.from带有地图功能。

＆＃13;

var row = ["var1", "var2", "var3"];
var col = ["res1", "res2", "res3"];

var res = Array.from({ length: row.length }, (_, i) => [row[i], col[i]]);

console.log(res)

＆＃13;

Javascript多维数组键 - val

1 个答案: