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1. Get group object has same value to array from available array:

• var arr_regular = [
• {name: 'MO', value: "0900 - 1700"},
• {name: 'TU', value: "0900 - 1700"},
• {name: 'WE', value: "1000 - 1800"},
• {name: 'TH', value: "1100-1730"},
• {name: 'FR', value: "1000 - 1800"},
• ];
• var arr_result = [];
• for (var k = 0; k < arr_regular.length; k++) {
• if(arr_regular[k].value && arr_regular[k].value != '') {
• arr_result.push({list: arr_regular[k].name, value: arr_regular[k].value});
• var idx_res = arr_result.length-1;
• for (var h = k+1; h < arr_regular.length; h++) {
• if(arr_regular[k].value == arr_regular[h].value) {
• arr_result[idx_res].list += "," +arr_regular[h].name;
• arr_regular.splice(h, 1);
• }
• }
• }
• }

-array result:

• arr_result = [
• {list: "MO,TU", value: "0900 - 1700"},
• {list: "WE,FR", value: "1000 - 1800"},
• {list: "TH", value: "1100 - 1730"}]

2. create tree folder

• var items = [

• {id: 1, parentId: '', documents: [{id: 1}, {id: 2}]},

• {id: 2, parentId: 1, documents: [{id: 1}, {id: 2}]},

• {id: 3, parentId: 1, documents: [{id: 1}, {id: 2}]},

• {id: 4, parentId: 2, documents: [{id: 2}]},

• {id: 5, parentId: 2, documents: [{id: 1}, {id: 2}]},

• {id: 6, parentId: 4, documents: [{id: 1}, {id: 2}]},

• {id: 7, parentId: '', documents: [{id: 1}, {id: 2}]},

• {id: 8, parentId: 5, documents: [{id: 2}]},

• {id: 9, parentId: 1, documents: [{id: 1}, {id: 2}]}

• ];

• function create_tree_folder(items) {

• var map = {}

• for (var i = 0; i < items.length; i++)

• {

• items[i].nodes = [];

• items[i].count_document = items[i].documents.length

• map[items[i].id] = items[i];

• }

• var newArray = [];

• for (var id in map)

• {

• var item = map[id];

• var parent = map[item.parentId];

• if (parent) {

• parent.nodes = parent.nodes || null;

• parent.nodes.push(item);

• }

• else

• {

• item.nodes = item.nodes||null;

• item.check_parentFolder = 1;

• newArray.push(item);

• }

• }

• $scope.data = newArray;

• }