返回json格式
JSON.parse(),JSON.stringify(),jQuery.parseJSON()的用法
1. JSON.parse(jsonString): 在一個字符串中解析出JSON對象
| 1 2 3 | var?str =?'[{"href":"baidu.com","text":"test","orgId":123,"dataType":"curry","activeClass":"haha"}]'; JSON.parse(str); |
結果:
2. JSON.stringify(obj) : 將一個JSON對象轉換成字符串
| 1 2 3 | var?obj = [{"href":"baidu.com","text":"test","orgId":123,"dataType":"curry","activeClass":"haha"}]; JSON.stringify(obj); |
結果:
| 1 | "[{"href":"baidu.com","text":"test","orgId":123,"dataType":"curry","activeClass":"haha"}]" |
3. jQuery.parseJSON(jsonString) : 將格式完好的JSON字符串轉為與之對應的JavaScript對象?
| 1 2 3 | var?str =?'[{"href":"baidu.com","text":"test","orgId":123,"dataType":"curry","activeClass":"haha"}]'; jQuery.parseJSON(str); |
結果:
4.JSON.parse()和jQuery.parseJSON()的區別:
有的瀏覽器不支持JSON.parse()方法,使用jQuery.parseJSON()方法時,在瀏覽器支持時會返回執行JSON.parse()方法的結果,否則會返回類似執行eval()方法的結果,以上結論參考jquery 1.9.1 得出:
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 | parseJSON:?function( data ) { ????// Attempt to parse using the native JSON parser first ????if?( window.JSON && window.JSON.parse ) { ????????return?window.JSON.parse( data ); ????} ????if?( data ===?null?) { ????????return?data; ????} ????if?(?typeof?data ===?"string"?) { ????????// Make sure leading/trailing whitespace is removed (IE can't handle it) ????????data = jQuery.trim( data ); ????????if?( data ) { ????????????// Make sure the incoming data is actual JSON ????????????// Logic borrowed from http://json.org/json2.js ????????????if?( rvalidchars.test( data.replace( rvalidescape,?"@"?) ????????????????.replace( rvalidtokens,?"]"?) ????????????????.replace( rvalidbraces,?"")) ) { ????????????????return?(?new?Function(?"return "?+ data ) )(); ????????????} ????????} ????} ????jQuery.error(?"Invalid JSON: "?+ data ); }, |
轉載于:https://www.cnblogs.com/Darkqueen/p/9698430.html
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