如何将值作为数组中的键

Question

我在JavaScript中有var x

var x = [{"id":"11","affiliate_id":"190","affiliate_percent":"0.2","read_only":"1"},{"id":"12","affiliate_id":"33","affiliate_percent":"0.1","read_only":"1"}];

我想要价值：

var x = [{"190":"0.2"},{"33":"0.1"}];

此处affiliate_id值为关键，affiliate_percent值为值。

Answer 1

试试：

var x = [
  {"id":"11","affiliate_id":"190","affiliate_percent":"0.2","read_only":"1"},
  {"id":"12","affiliate_id":"33","affiliate_percent":"0.1","read_only":"1"}
];

var output = [];
for (var key in x) {
  var item = {};
      item[x[key].affiliate_id] = x[key].affiliate_percent;
  output.push(item);
}

输出：

[{"190":"0.2"},{"33":"0.1"}]

Answer 2

如果您尝试动态创建新的值键，则可以执行此操作：

var obj={};

obj[affiliate_id] = ""[{"id":"11","affiliate_id":"190","affiliate_percent":"0.2","read_only":"1"},{"id":"12","affiliate_id":"33","affiliate_percent":"0.1","read_only":"1"}]";