[英]How to iterate over some of the JSON object keys
I have a JSON object of the format: 我有一个格式的JSON对象:
{
"z061": {
"status": "restored",
"time": 135
},
"z039": {
"status": "restored",
"time": 139
}, ...
}
where there are 64 zones numbered z001 to z064. 其中有64个区域,编号为z001至z064。
What is the best way in Javascript to populate a table based on the "status" of zones z001 to z015? 用Javascript根据区域z001到z015的“状态”填充表的最佳方法是什么? Here is my current code that only evaluates zone z003:
这是我当前的代码,仅评估区域z003:
setInterval(function() {
$.getJSON("http://rackserver.local:8080",function(data) {
var temp = data.z003.status;
if (temp != "restored")
$("#securityTable tr:eq(3)").removeClass("error").addClass("success");
else
$("#securityTable tr:eq(3)").removeClass("success").addClass("error");
});
}, 1500);
You can access objects with the dot operator or with the indexers operator, this task is for the indexers. 您可以使用点运算符或索引器运算符访问对象,此任务适用于索引器。
for (var i = 1; i <=15; i++){
// hardcoded the check to make it easier.
if (i >= 10)
var temp = data["z0" + i].status;
else
var temp = data["z00" + i].status;
}
$.getJSON("http://rackserver.local:8080",function(data) {
$.each( data, function( key, value ) {
if (data[key].status != "restored") {
//do your stuff
} else {
//do more stuff
}
});
Here is the code I came up with. 这是我想出的代码。
setInterval(function() {
$.getJSON("http://rackserver.local:8080",function(data) {
var i = 1, j;
for (; i <= 64; i += 1) {
j = 'z';
if (i < 10) j += '0';
if (i < 100) j += '0';
if (data[j + i].status !== "restored")
$("#securityTable tr:eq(" + i + ")").removeClass("error").addClass("success");
else
$("#securityTable tr:eq(" + i + ")").removeClass("success").addClass("error");
}
}, 1500);
Hope this helps. 希望这可以帮助。
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