[英]Transform Javascript grouped data into JSON array
Using below code, I am able to group objects from my existing data with Underscore JS as shown. 使用下面的代码,我可以使用Underscore JS对现有数据中的对象进行分组,如下所示。
{Group1: Array[10], Group2: Array[13], Group3: Array[16], Group4: Array[21], Group5: Array[38]}
//Create a category based on group assigned
var groupedData = _.groupBy(results, function (d) {
return d.groups;
});
console.log(groupedData);
But what I really need is to turn the above into JSON array looking like: 但是我真正需要的是将上述内容转换为JSON数组,如下所示:
var myData = [["Group1", 10], ["Group2",13], ["Group3",16], ["Group4",21], ["Group5",38]];
How can I adjust my code in order to get the desired result? 如何调整代码以获得所需的结果?
Thank you for your help. 谢谢您的帮助。
Use Array.map and Object.keys 使用Array.map和Object.keys
var results = { a: [1, 2], b: [2, 3] }; var grouped = Object.keys(results).map(function(key) { return [key, results[key].length]; }); document.body.innerHTML = JSON.stringify(grouped);
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