31 lines
1.0 KiB
Java
31 lines
1.0 KiB
Java
var helperCreateTreeFunc = require('./helperCreateTreeFunc')
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var map = require('./map')
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function mapTreeItem (parent, obj, iterate, context, path, node, parseChildren, opts) {
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var paths, nodes, rest
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var mapChildren = opts.mapChildren || parseChildren
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return map(obj, function (item, index) {
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paths = path.concat(['' + index])
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nodes = node.concat([item])
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rest = iterate.call(context, item, index, obj, paths, parent, nodes)
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if (rest && item && parseChildren && item[parseChildren]) {
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rest[mapChildren] = mapTreeItem(item, item[parseChildren], iterate, context, paths, nodes, parseChildren, opts)
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}
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return rest
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})
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}
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/**
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* 从树结构中指定方法后的返回值组成的新数组
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*
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* @param {Object} obj 对象/数组
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* @param {Function} iterate(item, index, items, path, parent, nodes) 回调
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* @param {Object} options {children: 'children'}
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* @param {Object} context 上下文
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* @return {Object/Array}
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*/
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var mapTree = helperCreateTreeFunc(mapTreeItem)
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module.exports = mapTree
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