var str = '{ \"ary\":[0,1,2], \"obj\": { \"a\":0,\"b\":1,\"c\":2 } }',\r\n obj = JSON.parse(str);\r\n console.log(obj.ary);\r\nconsole.log(obj.obj);<\/pre>\n\u30b3\u30f3\u30bd\u30fc\u30eb\u3067\u78ba\u8a8d\u3057\u3066\u307f\u308b\u3068\u3001<\/p>\n
![\"\"](\"https:\/\/www.webcyou.com\/wp-content\/uploads\/70be97db7e3f314dd5f12b413dbb6979.png\" "\\"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8")
<\/a><\/p>\n\u3053\u306e\u3088\u3046\u306bObject\u3068\u3057\u3066\u5909\u63db\u3055\u305b\u3066\u3044\u308b\u306e\u304c\u78ba\u8a8d\u51fa\u6765\u308b\u304b\u3068\u601d\u3044\u307e\u3059\u3002\u3002<\/p>\n
JSON.parse()\u306fJSON\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u3067\u4f5c\u6210\u3055\u308c\u3066\u3044\u308b\u6587\u5b57\u5217\u30c7\u30fc\u30bf\u3092\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u5909\u63db\u3057\u3066\u304f\u308c\u308b\u30e1\u30bd\u30c3\u30c9\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n
JSON.parse();\u00a0<\/pre>\n\u4ee5\u524d\u3067\u306f\u3001JSON.parse()\u610f\u5916\u306beval()\u7b49\u304c\u7528\u3044\u3089\u308c\u3066\u3044\u307e\u3057\u305f\u304c\u3001\u3053\u3061\u3089\u306f\u30bb\u30ad\u30e5\u30ea\u30c6\u30a3\u4e0a\u306e\u554f\u984c\u304c\u5728\u308b\u305f\u3081\u3001\u4f7f\u7528\u306f\u3057\u306a\u3044\u307b\u3046\u304c\u826f\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n
eval\u306f\u60aa\u9b54\u3068\u899a\u3048\u3066\u3044\u3066\u4f55\u3089\u554f\u984c\u306f\u304b\u3068\u601d\u3044\u307e\u3059\u3002\u4eee\u306b\u4e0a\u8a18\u306e\u4f8b\u3067\u3059\u3068\u3001<\/p>\n
eval(\"obj = \" + str);<\/pre>\n\u3067\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u5909\u63db\u3067\u304d\u307e\u3059\u304c\u3001\u4f7f\u7528\u306f\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002<\/p>\n
\u9006\u306b\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304b\u3089JSON\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306b\u5909\u63db\u3059\u308b\u969b\u306f\u3001<\/p>\n
JSON.stringify();<\/pre>\n\u3067\u3001JSON\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\u306b\u5909\u63db\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n
var obj = { ary:[0,1,2], obj:{ a:0, b:1, c:2 } };\r\nvar str = JSON.stringify(obj);\r\nconsole.log(str);<\/pre>\n\u30b3\u30f3\u30bd\u30fc\u30eb\u3067\u78ba\u8a8d\u3059\u308b\u3068\u5909\u63db\u3067\u304d\u3066\u3044\u308b\u306e\u304c\u78ba\u8a8d\u3067\u304d\u307e\u3059\u3002<\/p>\n
![\"\"](\"https:\/\/www.webcyou.com\/wp-content\/uploads\/24ae89649140f45474f974b7fb758119.png\" "\\"\u30b9\u30af\u30ea\u30fc\u30f3\u30b7\u30e7\u30c3\u30c8")
<\/a><\/p>\n\u307e\u305f\u3001JSON\u30c7\u30fc\u30bf\u306f\u53b3\u683c\u306a\u90e8\u5206\u3082\u3042\u308a\u3001\u6587\u5b57\u5217\u306f\u30c0\u30d6\u30eb\u30b3\u30fc\u30c6\u30fc\u30b7\u30e7\u30f3\u300c\u201d\u300d\u3067\u56f2\u308f\u306a\u3044\u3068\u30a8\u30e9\u30fc\u304c\u767a\u751f\u3057\u307e\u3059\u306e\u3067\u3054\u6ce8\u610f\u3092\u3002<\/p>\n
JSON + Ajax<\/h4>\n
Ajax\u3068\u306f\u3001\u7c21\u5358\u306b\u8aac\u660e\u3057\u307e\u3059\u3068\u3001XMLHttpRequest()\u3067\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u751f\u6210\u3057\u3001\u975e\u540c\u671f\u901a\u4fe1\u3092\u884c\u3046\u624b\u6cd5\u3067\u3059\u3002<\/p>\n
\u8a73\u3057\u304f\u306f\u3053\u3061\u3089\u3067\u3082\u3054\u53c2\u7167\u306e\u7a0b\u3092\u3002<\/p>\n
JavaScript Ajax XMLHttpRequest<\/a><\/h3>\n\u3067\u306f\u3001XMLHttpRequest \u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u3092\u4f5c\u6210\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n
\u4eca\u56de\u306fIE\u306a\u3069\u306e\u5bfe\u5fdc\u306f\u884c\u3044\u307e\u305b\u3093\u3002<\/p>\n
httpObj = new XMLHttpRequest();<\/pre>\n\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u65b9\u3092\u30b3\u30f3\u30bd\u30fc\u30eb\u3067\u78ba\u8a8d\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n
console.log(httpObj);<\/pre>\n