/*
|
## 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
|
