Created
September 2, 2016 07:24
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Преобразование дерева в пункты меню по уровням вложенности
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/* | |
Результат | |
[ | |
['1', '2', '3'], | |
['1-1', '1-2', '3-1', '3-2', '3-3'], | |
['1-2-1', '3-2-1', '3-2-2'] | |
] | |
*/ | |
var input = [ | |
{ | |
"name": "1", | |
"items": [ | |
{ | |
"name": "1-1" | |
}, | |
{ | |
"name": "1-2", | |
"items": [ | |
{ | |
"name": "1-2-1" | |
} | |
] | |
} | |
] | |
}, | |
{ | |
"name": "2" | |
}, | |
{ | |
"name": "3", | |
"items": [ | |
{ | |
"name": "3-1" | |
}, | |
{ | |
"name": "3-2", | |
"items": [ | |
{ | |
"name": "3-2-1" | |
}, | |
{ | |
"name": "3-2-2" | |
} | |
] | |
}, | |
{ | |
"name": "3-3" | |
} | |
] | |
} | |
]; | |
function iter(arr, level, item){ | |
if (!arr[level]){ | |
arr[level] = []; | |
} | |
arr[level].push(item.name); | |
if (item.items){ | |
for (var i = 0; i < item.items.length; i++){ | |
iter(arr, level + 1, item.items[i]); | |
} | |
} | |
return arr; | |
} | |
var arr = []; | |
for (var i = 0; i < input.length; i++){ | |
iter(arr, 0, input[i]); | |
} | |
console.log(arr); |
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