如何将json转换为没有键的angularjs中的数组？

问题描述：

var data = [ 
    {"field1":"918666400041","field2":"2016-05-19 11:52:52"}, 
    {"field1":"918666400035","field2":"2016-05-19 11:52:52"}, 
    {"field1":"918666400060","field2":"2016-05-19 11:52:52"} 
];

但我需要转换成阵列格式了键，如我的代码返回JSON格式：

var Data = [ 
    ['918666400041', '2016-05-19 11:52:52'], 
    ['918666400035', '2016-05-19 11:52:52'], 
    ['918666400035', '2016-05-19 11:52:52'] 
];

任何一个可以将给予这个问题的解决方案？

我已经尝试过angular.forEach函数和map函数，但我没有得到这种格式。

背后是什么忽略对象的字段名的想法？如果你想让JSON像这样，那么你不应该为了对象本身。你期望的是数组的简单数组。 – NightsWatch

答

你可以尝试reduce功能：

var Data = data.reduce(function(previousValue, currentValue) { 
    previousValue.push([currentValue.field1, currentValue.field2]) 
    return previousValue; 
}, []);

答

var obj = [ {"field1":"918666400041","field2":"2016-05-19 11:52:52"}, {"field1":"918666400035","field2":"2016-05-19 11:52:52"}, {"field1":"918666400060","field2":"2016-05-19 11:52:52"} ]; 
 

 
var res = obj.map(function(val) { 
 
    return [val.field1, val.field2] 
 
}) 
 

 
console.log(res)

感谢asdf_enel_hak现在工作正常 – Ram

答

根据您打算support浏览器，你可以只使用ES5 map功能：

var mappedData = data.map(function(obj) { 
    return [obj.field1, obj.field2]; 
});

如果您没有访问ES5阵列的方法，你可以使用角度的的forEach如下：

var mappedData = []; 
angular.forEach(data, function(obj) { 
    mappedData.push([obj.field1, obj.field2]); 
});

感谢net.uk.sweet工作正常 – Ram

没有probs @Ram。你能将答案标记为正确吗？ –

答

可以使这样的：

var l_IN = <your starting JSON> ; 

var I_OUT = [] ; 

for (x = 0 ; x < l_IN.length ; x++) { 

    dummy = {l_IN.field1,l_IN.field2} ; 

    l_OUT.push(dummy) ; 

// or l_OUT.push(l_IN.field1,l_IN.field2) ; 
} 

....

答

试试这个

var data = [ 
{"field1":"918666400041","field2":"2016-05-19 11:52:52"}, 
{"field1":"918666400035","field2":"2016-05-19 11:52:52"}, 
{"field1":"918666400060","field2":"2016-05-19 11:52:52"} 
]; 

var x =[]; 

angular.forEach(data,function(val,index){ 
x.push(val.field1) 
x.push(val.field2) 
})

现在x你会得到所需的阵列

答

你可以使用这样的事情：

var data = [ {"field1":"918666400041","field2":"2016-05-19 11:52:52"},{"field1":"918666400035","field2":"2016-05-19 11:52:52"}, {"field1":"918666400060","field2":"2016-05-19 11:52:52"} ], 
    newData = []; 

// Iterating through the data array, to process object by object 
for (var i = data.length - 1, tempArray; i >= 0; i--) { 
    // returning a new object with only the current object value for each key 
    tempArray = Object.keys(data[i]).map(function(k) { return data[i][k] }); 
    newData.push(tempArray); 
} 

console.log(newData);

这是非常类似（但稍微复杂一点这里）比Converting JSON Object into Javascript array

如何将json转换为没有键的angularjs中的数组？

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