Javascript 将javascript数组转换为具有相同键/值的对象
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/38536974/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Convert javascript array to object of same keys/values
提问by Phiter
I have a function that returns an array, as follows:
我有一个返回数组的函数，如下所示：
But I'm trying to populate a SweetAlert2 dialog.
但我正在尝试填充 SweetAlert2 对话框。
As the documentation exemplifies, the desired input would look like this
正如文档所举例说明的那样，所需的输入看起来像这样
inputOptions: {
'SRB': 'Serbia',
'UKR': 'Ukraine',
'HRV': 'Croatia'
},
How could I convert my array to the needed format, considering that the key will be the same as the value?
考虑到键与值相同，我如何将数组转换为所需的格式？
So, something like this would be the result:
所以，结果是这样的：
{
'aaa123': 'aaa123',
'A?ucena': 'A?ucena',
'Braúnas': 'Braúnas',
[...]
}
I have tried JSON.stringify, but the output is not what I need:
我试过了JSON.stringify，但输出不是我需要的：
"[["aaa123","A?ucena","Braúnas","C. Fabriciano","gege","gegeq2","Ipatinga","Joanésia","Mesquita","Rodoviário","teste","teste2","Timóteo","Tomatoentro","ts"]]"
"[["aaa123","A?ucena","Braunas","C. Fabriciano","gege","gegeq2","Ipatinga","Joanésia","Mesquita","Rodoviário","teste","teste2","Timóteo","Tomatoentro","ts"]]"
回答by Amit
This can be done with a simple reducecall:
这可以通过一个简单的reduce调用来完成：
// Demo data
var source = ['someValue1', 'someValue2', 'someValue3', 'other4', 'other5'];
// This is the "conversion" part
var obj = source.reduce(function(o, val) { o[val] = val; return o; }, {});
// Demo output
document.write(JSON.stringify(obj));回答by user3163495
The key to this is that you can assign properties using the obj["string"] technique:
关键是您可以使用 obj["string"] 技术分配属性：
function ArrayToObject(arr){
var obj = {};
for (var i = 0;i < arr.length;i++){
obj[arr[i]] = arr[i];
}
return obj
}
回答by Cem Arguvanl?
if you are using jQuery;
如果您使用的是 jQuery；
$.extend({}, ['x', 'y', 'z']);
if you not;
如果你没有；
Object.assign({}, my_array);
Another example;
另一个例子;
var arr = [{name: 'a', value: 'b', other: 'c'}, {name: 'd', value: 'e', other: 'f'}];
var obj = arr.reduce(function ( total, current ) {
total[ current.name ] = current.value;
return total;
}, {});
回答by onlyurei
Object.assign(
{},
...['value1', 'value2', 'value3', 'value4', 'value5'].map((value) => ({
[value]: value,
})),
)
returns
返回
{value1: "value1", value2: "value2", value3: "value3", value4: "value4", value5: "value5"}
No common ESlint rules error.
没有常见的 ESlint 规则错误。
