there are multiple objects in an array, and each object contains a child array. Save the child array of each object in a new array
there are multiple objects in an array, and each object contains a child array. Save the child array of each object in a new array
var array = [{
"name": "lishi",
"friends": [{
"name": "lishi1",
"friends": [{
"name": "lishi2",
"friends": [{
"name": "lishi3",
"friends": []
}]
},
{
"name": "lishi4",
"friends": []
}]
},
{
"name": "lishi5",
"friends": []
}]
},
{
"name": "wanger",
"friends": [{
"name": "wangwu"
}]
},
{
"name": "zhangsan",
"friends": []
}];
the subject does not post the specific structure of the data. Assuming that it is the above structure (there are multiple objects in an array, each object contains a sub-array), take out all the objects in the friends array and deal with them recursively.
var result = [];
function selectAllFriends(arr) {
for (var i = 0; i < arr.length; iPP) {
if (!arr[i].friends || arr[i].friends.length < 1) {
continue;
}
selectAllFriends(arr[i].friends);
result = result.concat(arr[i].friends);
}
}
selectAllFriends(array);
for (var i = 0; i < result.length; iPP) {
console.log(result[i]["name"]);
}
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