util.js
3.12 KB
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
/*
## Utilities
*/
var Util = {}
Util.extend = function extend() {
var target = arguments[0] || {},
i = 1,
length = arguments.length,
options, name, src, copy, clone
if (length === 1) {
target = this
i = 0
}
for (; i < length; i++) {
options = arguments[i]
if (!options) continue
for (name in options) {
src = target[name]
copy = options[name]
if (target === copy) continue
if (copy === undefined) continue
if (Util.isArray(copy) || Util.isObject(copy)) {
if (Util.isArray(copy)) clone = src && Util.isArray(src) ? src : []
if (Util.isObject(copy)) clone = src && Util.isObject(src) ? src : {}
target[name] = Util.extend(clone, copy)
} else {
target[name] = copy
}
}
}
return target
}
Util.each = function each(obj, iterator, context) {
var i, key
if (this.type(obj) === 'number') {
for (i = 0; i < obj; i++) {
iterator(i, i)
}
} else if (obj.length === +obj.length) {
for (i = 0; i < obj.length; i++) {
if (iterator.call(context, obj[i], i, obj) === false) break
}
} else {
for (key in obj) {
if (iterator.call(context, obj[key], key, obj) === false) break
}
}
}
Util.type = function type(obj) {
return (obj === null || obj === undefined) ? String(obj) : Object.prototype.toString.call(obj).match(/\[object (\w+)\]/)[1].toLowerCase()
}
Util.each('String Object Array RegExp Function'.split(' '), function(value) {
Util['is' + value] = function(obj) {
return Util.type(obj) === value.toLowerCase()
}
})
Util.isObjectOrArray = function(value) {
return Util.isObject(value) || Util.isArray(value)
}
Util.isNumeric = function(value) {
return !isNaN(parseFloat(value)) && isFinite(value)
}
Util.keys = function(obj) {
var keys = [];
for (var key in obj) {
if (obj.hasOwnProperty(key)) keys.push(key)
}
return keys;
}
Util.values = function(obj) {
var values = [];
for (var key in obj) {
if (obj.hasOwnProperty(key)) values.push(obj[key])
}
return values;
}
/*
### Mock.heredoc(fn)
* Mock.heredoc(fn)
以直观、安全的方式书写（多行）HTML 模板。
**使用示例**如下所示：
var tpl = Mock.heredoc(function() {
/*!
{{email}}{{age}}
<!-- Mock {
email: '@EMAIL',
age: '@INT(1,100)'
} -->
*\/
})
**相关阅读**
* [Creating multiline strings in JavaScript](http://stackoverflow.com/questions/805107/creating-multiline-strings-in-javascript)、
*/
Util.heredoc = function heredoc(fn) {
// 1. 移除起始的 function(){ /*!
// 2. 移除末尾的 */ }
// 3. 移除起始和末尾的空格
return fn.toString()
.replace(/^[^\/]+\/\*!?/, '')
.replace(/\*\/[^\/]+$/, '')
.replace(/^[\s\xA0]+/, '').replace(/[\s\xA0]+$/, '') // .trim()
}
Util.noop = function() {}
module.exports = Util