JS對於JSON的處理，記錄一下。
相較於PHP，JS還是比較生疏阿XD
直接呼叫即可，不用像以前要載入js plugin了!
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array/object to json
JSON.stringify()
ex:
var obj = { "name":"John", "age":30, "city":"New York"};
var myJSON = JSON.stringify(obj);
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json to array/object
JSON.parse()
ex:
'{ "name":"John", "age":30, "city":"New York"}'
Use the JavaScript function JSON.parse() to convert text into a JavaScript object:
var obj = JSON.parse('{ "name":"John", "age":30, "city":"New York"}');
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參考
https://www.w3schools.com/js/js_json_parse.asp
https://www.w3schools.com/js/js_json_stringify.asp
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