本文介绍了如何将键值元组数组转换为对象的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我有一个数组:
[ [ 'cardType', 'iDEBIT' ],
[ 'txnAmount', '17.64' ],
[ 'txnId', '20181' ],
[ 'txnType', 'Purchase' ],
[ 'txnDate', '2015/08/13 21:50:04' ],
[ 'respCode', '0' ],
[ 'isoCode', '0' ],
[ 'authCode', '' ],
[ 'acquirerInvoice', '0' ],
[ 'message', '' ],
[ 'isComplete', 'true' ],
[ 'isTimeout', 'false' ] ]
但我无法通过数组的键访问数据,例如arr['txnId']
不返回 20181
.如何将上述元组数组转换为对象,以便我可以轻松地通过键访问数据.
But I can't access data via an array's key, e.g. arr['txnId']
does not return 20181
. How can I convert the above array of tuples into an object, so that I can easily access data by key.
推荐答案
2020 年 6 月更新
ECMAScript 2021 带来了 Object.fromEntries
正是要求:
const array = [ [ 'cardType', 'iDEBIT' ],
[ 'txnAmount', '17.64' ],
[ 'txnId', '20181' ],
[ 'txnType', 'Purchase' ],
[ 'txnDate', '2015/08/13 21:50:04' ],
[ 'respCode', '0' ],
[ 'isoCode', '0' ],
[ 'authCode', '' ],
[ 'acquirerInvoice', '0' ],
[ 'message', '' ],
[ 'isComplete', 'true' ],
[ 'isTimeout', 'false' ] ];
const obj = Object.fromEntries(array);
console.log(obj);
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/fromEntries
这样做:
const array = [ [ 'cardType', 'iDEBIT' ],
[ 'txnAmount', '17.64' ],
[ 'txnId', '20181' ],
[ 'txnType', 'Purchase' ],
[ 'txnDate', '2015/08/13 21:50:04' ],
[ 'respCode', '0' ],
[ 'isoCode', '0' ],
[ 'authCode', '' ],
[ 'acquirerInvoice', '0' ],
[ 'message', '' ],
[ 'isComplete', 'true' ],
[ 'isTimeout', 'false' ] ];
var obj = {};
array.forEach(function(data){
obj[data[0]] = data[1]
});
console.log(obj);
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