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How to implement traversal of irregular multi-dimensional arrays in JS

亚连
Release: 2018-05-26 17:31:14
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This article mainly introduces the method of JS to implement traversal of irregular multi-dimensional arrays, involving the implementation and usage skills of recursive traversal of javascript arrays. Friends in need can refer to it

The example of this article tells the implementation of JS to traverse irregular multi-dimensional arrays Methods for regular multidimensional arrays. Share it with everyone for your reference, the details are as follows:

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Sometimes when we process data, we may encounter some irregularities (unpredictable data structures), then get How do we traverse this kind of data? For example:

var data= {
    a: { one: 1, two: 2, three: {four:'2',five:'4'} },
    b: { six: 4, seven: 5, eight: 6 },
    c: { nine: 7, ten: 8}
}
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For example, the data above (the actual situation is that this data will have various unpredictable changes), if you want to traverse this kind of data, you cannot traverse it with a simple for in.

In fact, this kind of data traversal is also simple. Using the recursive method can perfectly solve this problem.

The code is as follows:

function traverse(obj) {
    for (var a in obj) {
      if (typeof(obj[a]) == "object") {
        traverse(obj[a]); //递归遍历
      } else {
        console.log(a + "=" + obj[a]); //如果是值就显示
      }
    }
}
traverse(data)
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Finally, we only need to call this method to When obj is passed in, the entire data is successfully traversed

The results of this example are as follows:

The above is what I compiled for everyone. I hope it will be useful to you in the future. Everyone is helpful.

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