如何使用数字作为密钥？

Question

I have ids like as numbers 374,242,435

I want to use this as key of hash for the object.

var json = [];
ids = [374,242,435];
for(let i in ids) {
    var id = ids[i];
    json[id] = []; // it makes 372 array!!! 
    json[id]['name'] = name;
    json[id]['color'] = color;
}

Can I make object using number as key????

---

This is my silly mistake

I just changed var json = []; -> var json = {}; it works.

and thank you for your comments.

Answer 1

let json = {};
let ids = [374,242,435];
for(let i in ids) {
    let id = ids[i];
    json[id] = {
        name: 'some name',
        color: '#ff0000'
    };
}

EDIT: A better version

let json = {};
let ids = [374,242,435];
ids.forEach((id) => {
    json[id] = {
        name: 'some name',
        color: '#ff0000'
    };
});

Answer 2

You can use Map to store key-value pair. In Map, key will not just be string.

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map

Answer 3

var json = {};

var ids = [374,242,435];

for(const i of ids) {
    json[i] : {
     name : 'name',
     color : '#colorcode'
    }
}