javascript - 要在 Javascript 中以特殊格式列出的字符串

Question

我有一个字符串，其中包含逗号分隔的名称和可选值，这些值像这样分隔值:

var str = "PowerOn:On,ValidLocation, temp:25";

我想把它转换成可以通过名称访问值的对象或 json，如下所示:

var a = {"PowerOn":"On", "ValidLocation":"true", "temp":25};
var result = a.PowerOn;
alert(result);

或

var a = {"PowerOn":"On", "ValidLocation":"true", "temp":25};
var result = a["PowerOn"];
alert(result);

Note 1: If a name doesn't have value it be true by default.

更新:

Note 2 :If a name doesn't exist in list the value of it be false: ex:

var a = {"PowerOn":"On", "ValidLocation":"true", "temp":25};
var result = a.Alarm 
//result must be false

Answer 1

var str = "PowerOn:On,ValidLocation, temp:25",
    arr = str.split(','),
    obj = {}

for (var i=0; i<arr.length; i++) {
    var parts = arr[i].split(':');
    obj[parts[0]] = parts[1] || true;
}

JSFIDDLE