all files / filters/ array.js

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
 
 
 
 
 
 
 
1×
7×
7×
1×
6×
16×
 
4×
 
6×
6×
6×
25×
25×
25×
3×
 
22×
 
25×
 
 
6×
6×
1×
 
6×
6×
6×
25×
25×
21×
 
4×
 
 
 
 
1×
11×
8×
33×
 
3×
 
 
 
 
3×
10×
10×
 
 
 
 
1×
7×
7×
1×
6×
6×
6×
2×
4×
3×
1×
 
2×
2×
8×
 
 
 
1×
 
4×
4×
4×
15×
15×
 
 
10×
8×
 
2×
 
 
 
4×
 
 
1×
4×
2×
2×
5×
 
 
2×
 
 
 
1×
14×
14×
1×
 
13×
1×
 
 
12×
1×
 
 
11×
1×
 
11×
11×
11×
11×
1×
 
11×
11×
45×
9×
 
36×
 
11×
11×
10×
 
1×
1×
2×
 
 
 
1×
9×
32×
 
9×
 
 
 
 
1×
1×
 
1×
3×
 
 
 
 
3×
 
1×
 
import { avalon } from '../seed/core'
import { $$skipArray } from '../vmodel/reserved'
 
/*
https://github.com/hufyhang/orderBy/blob/master/index.js
*/
 
export function orderBy(array, by, decend) {
    var type = avalon.type(array)
    if (type !== 'array' && type !== 'object')
        throw 'orderBy只能处理对象或数组'
    var criteria = typeof by == 'string' ? function(el) {
        return el && el[by]
    } : typeof by === 'function' ? by : function(el) {
        return el
    }
    var mapping = {}
    var temp = []
    __repeat(array, Array.isArray(array), function(key) {
        var val = array[key]
        var k = criteria(val, key)
        if (k in mapping) {
            mapping[k].push(key)
        } else {
            mapping[k] = [key]
        }
        temp.push(k)
    })
 
    temp.sort()
    if (decend < 0) {
        temp.reverse()
    }
    var _array = type === 'array'
    var target = _array ? [] : {}
    return recovery(target, temp, function(k) {
        var key = mapping[k].shift()
        if (_array) {
            target.push(array[key])
        } else {
            target[key] = array[key]
        }
    })
}
 
function __repeat(array, isArray, cb) {
    if (isArray) {
        array.forEach(function(val, index) {
            cb(index)
        })
    } else Iif (typeof array.$track === 'string') {
        array.$track.replace(/[^☥]+/g, function(k) {
            cb(k)
        })
    } else {
        for (var i in array) {
            Eif (array.hasOwnProperty(i)) {
                cb(i)
            }
        }
    }
}
export function filterBy(array, search) {
    var type = avalon.type(array)
    if (type !== 'array' && type !== 'object')
        throw 'filterBy只能处理对象或数组'
    var args = avalon.slice(arguments, 2)
    var stype = avalon.type(search)
    if (stype === 'function') {
        var criteria = search._orig || search
    } else if (stype === 'string' || stype === 'number') {
        if (search === '') {
            return array
        } else {
            var reg = new RegExp(avalon.escapeRegExp(search), 'i')
            criteria = function(el) {
                return reg.test(el)
            }
        }
    } else {
        return array
    }
    var isArray = type === 'array'
    var target = isArray ? [] : {}
    __repeat(array, isArray, function(key) {
        var val = array[key]
        if (criteria.apply({
            key: key
        }, [val, key].concat(args))) {
            if (isArray) {
                target.push(val)
            } else {
                target[key] = val
            }
        }
    })
    return target
}
 
export function selectBy(data, array, defaults) {
    if (avalon.isObject(data) && !Array.isArray(data)) {
        var target = []
        return recovery(target, array, function(name) {
            target.push(data.hasOwnProperty(name) ? data[name] : defaults ? defaults[name] : '')
        })
    } else {
        return data
    }
}
 
export function limitBy(input, limit, begin) {
    var type = avalon.type(input)
    if (type !== 'array' && type !== 'object')
        throw 'limitBy只能处理对象或数组'
            //必须是数值
    if (typeof limit !== 'number') {
        return input
    }
    //不能为NaN
    if (limit !== limit) {
        return input
    }
    //将目标转换为数组
    if (type === 'object') {
        input = convertArray(input, false)
    }
    var n = input.length
    limit = Math.floor(Math.min(n, limit))
    begin = typeof begin === 'number' ? begin : 0
    if (begin < 0) {
        begin = Math.max(0, n + begin)
    }
    var data = []
    for (var i = begin; i < n; i++) {
        if (data.length === limit) {
            break
        }
        data.push(input[i])
    }
    var isArray = type === 'array'
    if (isArray) {
        return data
    }
    var target = {}
    return recovery(target, data, function(el) {
        target[el.key] = el.value
    })
}
 
function recovery(ret, array, callback) {
    for (var i = 0, n = array.length; i < n; i++) {
        callback(array[i])
    }
    return ret
}
 
//Chrome谷歌浏览器中js代码Array.sort排序的bug乱序解决办法
//http://www.cnblogs.com/yzeng/p/3949182.html
function convertArray(array, isArray) {
    var ret = [],
        i = 0
    __repeat(array, isArray, function(key) {
        ret[i] = {
            oldIndex: i,
            value: array[key],
            key: key
        }
        i++
    })
    return ret
}