数组中的JSON对象数组在javascript中查找和替换
我有一个像这样的JSON对象:
var myObject = [ {
"Name" : "app1",
"id" : "1",
"groups" : [
{ "id" : "test1",
"name" : "test group 1",
"desc" : "this is a test group"
},
{ "id" : "test2",
"name" : "test group 2",
"desc" : "this is another test group"
}
]
},
{
"Name" : "app2",
"id" : "2",
"groups" : [
{ "id" : "test3",
"name" : "test group 4",
"desc" : "this is a test group"
},
{ "id" : "test4",
"name" : "test group 4",
"desc" : "this is another test group"
}
]
},
{
"Name" : "app3",
"id" : "3",
"groups" : [
{ "id" : "test5",
"name" : "test group 5",
"desc" : "this is a test group"
},
{ "id" : "test6",
"name" : "test group 6",
"desc" : "this is another test group"
}
]
}
];
我为特定的“ id”提供了“名称”的新值。如何在任何对象内替换特定“ id”的“名称”?
以及如何计算所有对象之间的组总数?
例如:将名称替换为“ test grp45”,ID =“ test1”
这是小提琴 http://jsfiddle.net/qLTB7/21/
回答:
以下函数将搜索对象及其所有子对象/数组,并将键替换为新值。它会在全球范围内应用,因此在第一次替换后不会停止。取消注释注释行,以使其成为注释。
function findAndReplace(object, value, replacevalue) { for (var x in object) {
if (object.hasOwnProperty(x)) {
if (typeof object[x] == 'object') {
findAndReplace(object[x], value, replacevalue);
}
if (object[x] == value) {
object["name"] = replacevalue;
// break; // uncomment to stop after first replacement
}
}
}
}
可用的jsfiddle:http :
//jsfiddle.net/qLTB7/28/
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