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<head><meta charset="UTF-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><title>js 对象key值大小写转换</title>
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<body><script>// 大写转换function upperJSONKey(jsonObj){for (var key in jsonObj){jsonObj["\""+key.toUpperCase()+"\""] = jsonObj[key];delete(jsonObj[key]);}return jsonObj;}// 小写转换function lowerJSONKey(jsonObj){for (var key in jsonObj){jsonObj["\""+key.toLowerCase()+"\""] = jsonObj[key];delete(jsonObj[key]);}return jsonObj;}var obj = {KEY:'value'};var newObj = lowerJSONKey(obj);console.log(newObj);</script>
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