javascript - json数据值类型

Question

我想将 json 数组值从字符串更改为来自 php 脚本的浮点值。都是字符串类型。我想要它作为浮点类型。

[{"year":"2008","value":"4169.20"},
{"year":"2009","value":"4067.50"},
{"year":"2010","value":"4848.40"},
{"year":"2011","value":"5654.80"},
{"year":"2012","value":"6071.50"}]

但我希望它看起来像。可能吗？

[{"year":"2008","value":4169.20},
{"year":"2009","value":4067.50},
{"year":"2010","value":4848.40},
{"year":"2011","value":5654.80},
{"year":"2012","value":6071.50}]

Answer 1

最简单的方法是在将数据编码为 JSON 之前将 value 转换为 float。

但是如果你只想在 JS 中工作:

var data = [ /* your data */ ];

data.forEach(function(item){
  item.value = +item.value;
});

输出:

[
  {"year":"2008","value":4169.2},
  {"year":"2009","value":4067.5},
  {"year":"2010","value":4848.4},
  {"year":"2011","value":5654.8},
  {"year":"2012","value":6071.5}
]