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arrays - 重新排列字典数组

问题描述

我想将我的字典数组从当前字典重新排列到输出

当前词典

[[1: ["hours": 4.0, "projectName": "starworks"]], [1: ["hours": 5.0, "projectName": "starworks"]], [2: ["hours": 7.0, "projectName": "Ada-solo"]] [2: ["hours": 5.0, "projectName": "Ada-solo"]]]

与数组比较

[1,2,3,4,5]

输出欲望

[[1: ["hours": 4.0, "projectName": "starworks"], ["hours": 5.0, "projectName": "starworks"]], [2: ["hours": 7.0, "projectName": "Ada-solo"], ["hours": 5.0, "projectName": "Ada-solo"]]]

标签： arraysswiftdictionary

解决方案

就像 Sulthan 所说的，您可以将字典更改为自定义对象，或者您可以使用 foreach 循环遍历字典。

你可以做这样的事情。

var dictArray = [[1: ["hours": 4.0, "projectName": "starworks"]], [1: ["hours": 5.0, "projectName": "starworks"]], [2: ["hours": 7.0, "projectName": "Ada-solo"]],[2: ["hours": 5.0, "projectName": "Ada-solo"]]]

var result = [Int: [[String:Any]]]()
dictArray.forEach { dict in

    // 1.  Make sure the key/values doe exist.
    guard let key = dict.first?.key, let value = dict.first?.value else { return }

    // 2. Check for existing data
    if var existingData = result[key] {

        // 3a. Append the new value
        existingData.append(value)
        result[key] = existingData
    } else {

        // 3b. Add the new value
        result[key] = [value]
    }
}

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