Jquery从json数组解析值并返回逗号分隔

Question

如何从json数组中提取值：

[{"id":1,"name":"Blue"}, {"id":2,"name":"Green"}, {"id":3,"name":"Red"}]

并仅按以下格式返回ID：

['1','2','3','4','5']

Answer 1

试试这个，你可以在数组上使用map（）函数

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var x = [{
  "id": 1,
  "name": "Blue"
}, {
  "id": 2,
  "name": "Green"
}, {
  "id": 3,
  "name": "Red"
}];
var result = x.map(function(v) {
  return v.id + ''
})
document.write('<pre>' + JSON.stringify(result, 0, 4) + '</pre>')

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