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format-data.html
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format-data.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<script type="text/javascript">
var origin_data = [
{
province_name: '辽宁',
province_code: '211',
city_name: '沈阳',
city_code: '301'
},
{
province_name: '辽宁',
province_code: '211',
city_name: '大连',
city_code: '302'
},
{
province_name: '辽宁',
province_code: '211',
city_name: '朝阳',
city_code: '321'
},
{
province_name: '吉林',
province_code: '312',
city_name: '长春',
city_code: '332'
},
{
province_name: '黑龙江',
province_code: '178',
city_name: '哈尔滨',
city_code: '112'
}
];
var map = {};
var format_array = [];
for (var i = 0; i < origin_data.length; i++) {
var ai = origin_data[i];
if(!map[ai.province_code]){
format_array.push({
province_name: ai.province_name,
province_code: ai.province_code,
data: [{city_name:ai.city_name,city_code:ai.city_code}]
});
map[ai.province_code] = ai;
}
else{
for (var j = 0; j < format_array.length; j++) {
var fj = format_array[j];
if(fj.id == ai.id){
fj.data.push({city_name:ai.city_name,city_code:ai.city_code})
break;
}
}
}
}
console.log(format_array)
</script>
</head>
<body>
</body>
</html>