将键和值拆分为单独的对象 - JavaScript
javascriptweb developmentfront end technologyobject oriented programming
假设，我们有一个像这样的对象 −
const dataset = {
"diamonds":77,
"gold-bars":28,
"exciting-stuff":52,
"oil":51,
"sports-cars":7,
"bitcoins":40
};
我们需要编写一个 JavaScript 函数，该函数接受一个这样的对象并返回一个包含键和其值的对象数组。
因此，对于上述对象，输出应该是 −
const output = [
{"asset":"diamonds", "quantity":77},
{"asset":"gold-bars", "quantity":28},
{"asset":"exciting-stuff", "quantity":52},
{"asset":"oil", "quantity":51},
{"asset":"bitcoins", "quantity":40}
];
示例
以下是代码 −
const dataset = {
"diamonds":77,
"gold-bars":28,
"exciting-stuff":52,
"oil":51,
"sports-cars":7,
"bitcoins":40
};
const splitKeyValue = obj => {
const keys = Object.keys(obj);
const res = [];
for(let i = 0; i < keys.length; i++){
res.push({
'asset': keys[i],
'quantity': obj[keys[i]]
});
};
return res;
};
console.log(splitKeyValue(dataset));
输出
这将在控制台上产生以下输出 −
[
{ asset: 'diamonds', quantity: 77 },
{ asset: 'gold-bars', quantity: 28 },
{ asset: 'exciting-stuff', quantity: 52 },
{ asset: 'oil', quantity: 51 },
{ asset: 'sports-cars', quantity: 7 },
{ asset: 'bitcoins', quantity: 40 }
]
