从内容中的jsons如何能得到result ?

Question

varjsons=[
{"a":1,"b":2,"e":3,"d":4,"p":'河北',"c":'石家庄'},
{"a":1,"b":2,"e":3,"d":4,"p":'河北',"c":'保定'},
{"a":1,"b":2,"e":3,"d":4,"p":'河北',"c":'其他'},
{"a":2,"b":3,"e":4,"d":5,"p":'广东',"c":'广州'},
{"a":2,"b":3,"e":4,"d":5,"p":'广东',"c":'深圳'},
{"a":3,"b":4,"e":5,"d":6,"p":'澳门',"c":'澳门'}
];
varresult=[
[
{"a":1,"b":2,"e":3,"d":4,"p":'河北',"c":'石家庄'},
{"a":1,"b":2,"e":3,"d":4,"p":'河北',"c":'保定'},
{"a":1,"b":2,"e":3,"d":4,"p":'河北',"c":'其他'}
],
[
{"a":2,"b":3,"e":4,"d":5,"p":'广东',"c":'广州'},
{"a":2,"b":3,"e":4,"d":5,"p":'广东',"c":'深圳'}
],
[
{"a":3,"b":4,"e":5,"d":6,"p":'澳门',"c":'澳门'}
]
];

Answer 1

试试下面的代码：varcities={}varresult=[];for(vari=0;i

Answer 2

这个方法有很多吧。如果是支持es5的环境下，Array.prototype.filter、Array.prototype.reduce都能帮你实根据属性特定值筛选对象。