JSON Loop is a super easy to use tool class helping you loop the deeply nested JSON object. Here's Demo.
##Classic Usage Note: Here I don't provide API specification because the following code snippets are demonstractive enough.
#####Sample Data var obj = { 'id': '1', 'name': 'renyang', 'birth': 1985, 'role': 'manager', 'member': [ { 'id': '2', 'name': 'huangfan', 'birth': 1983, 'role': 'manager', 'member': [ {'id': '3', 'name': 'chenxiong', 'birth': 1984, 'role': 'engineer'} ] }, { 'id': '4', 'name': 'yuguang', 'birth': 1981, 'role': 'engineer manager', 'member': [ {'id': '5', 'name': 'chenjian', 'birth': 1985, 'role': 'engineer'} ] }, { 'id': '6', 'name': 'deshi', 'birth': 1980, 'role': 'engineer manager', 'member': [ {'id': '7', 'name': 'haibo', 'birth': 1983, 'role': 'engineer'}, {'id': '8', 'name': 'weitao', 'birth': 1987, 'role': 'engineer'}, {'id': '9', 'name': 'liuzheng', 'birth': 1986, 'role': 'engineer'}, {'id': '10', 'name': 'xiaoxue', 'birth': 1988, 'role': 'engineer'}, {'id': '11', 'name': 'xuebin', 'birth': 1982, 'role': 'engineer', 'member': [ {'id': '12', 'name': 'sam', 'birth': 1980, 'role': 'engineer'}, {'id': '13', 'name': 'loklaan', 'birth': 1990, 'role': 'engineer'} ] } ] } ] };
#####First of all, create a json loop object with required params // the first param is the name of 'Id' property of JSON object and the second one // is 'children' property name var jsonloop = new JSONLoop(obj, 'id', 'member');
#####Find one node based on unique id // node is what we are looking for jsonloop.findNodeById(obj, '11', function(err, node) { if (err) { console.log(err); } else { console.dir(node); } });
#####Find the nodes based on conditions // find our uE engineer with her name jsonloop.findNodes(obj, {'name': 'xiaoxue'}, function(err, nodes) { nodes.forEach(function(node) { console.dir(node); }); }); // find young engineers in our team. Here, nodes is an array of node. jsonloop.findNodes(obj, {'role': /engineer/i, 'birth': {'>=': 1985, '<': 1990}}, function(err, nodes) { nodes.forEach(function(node) { console.dir(node); }); });
#####Find a parent node based on a given node
jsonloop.findNodeById(obj, '11', function(err, node) {
if (err) {
console.log(err);
} else {
console.clear();
jsonloop.findParent(obj, node, function(err, node) {
console.clear();
if (err) {
console.log(err);
} else {
console.dir(node);
}
});
}
});
#####Find sibling nodes based on a given node
jsonloop.findNodeById(obj, '11', function(err, node) {
if (err) {
console.log(err);
} else {
console.clear();
jsonloop.findSiblings(obj, node, function(err, siblings) {
console.clear();
if (err) {
console.log(err);
} else {
siblings.forEach(function(item) {
console.dir(item);
});
}
});
}
});
#####Find ancestor nodes based on a given node
jsonloop.findNodeById(obj, '12', function(err, node) {
console.clear();
if (err) {
console.log(err);
} else {
jsonloop.findAncestors(obj, node, function(err, ancestors) {
console.clear();
if (err) {
console.log(err);
} else {
ancestors.forEach(function(item) {
console.dir(item);
});
}
});
}
});
The following are posts related to loop through nested json object where JOSN Loop can work best:
- [Stack Overflow] How do I loop through deeply nested properties of a json object?
- [Stack Overflow] json find parent node of node where key named “id” equal to “value”
- [Stack Overflow] Find the path of JSON for a key value
- [Stack Overflow] Constructively manipulating any value/object within a JSON tree of unknown depth