-
Notifications
You must be signed in to change notification settings - Fork 2
/
base.js
150 lines (150 loc) · 4.54 KB
/
base.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
// Generated by LiveScript 1.3.1
(function(){
if (!(Array.from != null)) {
return Array.from = function(){
var toStr, isCallable, toInteger, maxSafeInteger, toLength;
toStr = Object.prototype.toString;
isCallable = function(fn){
return typeof fn === 'function' || deepEq$(toStr.call(fn), '[object Function]', '===');
};
toInteger = function(value){
var number;
number = Number(value);
if (isNaN(number)) {
return 0;
}
if (number === 0 || !isFinite(number)) {
return number;
}
return (number > 0
? 1
: -1) * Math.floor(Math.abs(number));
};
maxSafeInteger = Math.pow(2, 53) - 1;
toLength = function(value){
var len;
len = toInteger(value);
return Math.min(Math.max(len, 0), maxSafeInteger);
};
return function(arrayLike){
var C, items, mapFn, T, len, A, k, kValue;
C = this;
items = Object(arrayLike);
if (arrayLike === null) {
throw new TypeError("Array.from requires an array-like object");
}
mapFn = arguments.length > 1 ? arguments[1] : undefined;
if (!deepEq$(typeof mapFn, 'undefined', '===')) {
if (!isCallable(mapFn)) {
throw new TypeError('Array.from: when provided, the second argument must be a function');
}
if (arguments.length > 2) {
T = arguments[2];
}
}
len = toLength(items.length);
A = isCallable(C)
? Object(new C(len))
: new Array(len);
k = 0;
while (k < len) {
kValue = items[k];
if (mapFn) {
A[k] = typeof T === 'undefined'
? mapFn(kValue, k)
: mapFn.call(T, kValue, k);
} else {
A[k] = kValue;
}
k += 1;
}
A.length = len;
return A;
};
}();
}
})();
function deepEq$(x, y, type){
var toString = {}.toString, hasOwnProperty = {}.hasOwnProperty,
has = function (obj, key) { return hasOwnProperty.call(obj, key); };
var first = true;
return eq(x, y, []);
function eq(a, b, stack) {
var className, length, size, result, alength, blength, r, key, ref, sizeB;
if (a == null || b == null) { return a === b; }
if (a.__placeholder__ || b.__placeholder__) { return true; }
if (a === b) { return a !== 0 || 1 / a == 1 / b; }
className = toString.call(a);
if (toString.call(b) != className) { return false; }
switch (className) {
case '[object String]': return a == String(b);
case '[object Number]':
return a != +a ? b != +b : (a == 0 ? 1 / a == 1 / b : a == +b);
case '[object Date]':
case '[object Boolean]':
return +a == +b;
case '[object RegExp]':
return a.source == b.source &&
a.global == b.global &&
a.multiline == b.multiline &&
a.ignoreCase == b.ignoreCase;
}
if (typeof a != 'object' || typeof b != 'object') { return false; }
length = stack.length;
while (length--) { if (stack[length] == a) { return true; } }
stack.push(a);
size = 0;
result = true;
if (className == '[object Array]') {
alength = a.length;
blength = b.length;
if (first) {
switch (type) {
case '===': result = alength === blength; break;
case '<==': result = alength <= blength; break;
case '<<=': result = alength < blength; break;
}
size = alength;
first = false;
} else {
result = alength === blength;
size = alength;
}
if (result) {
while (size--) {
if (!(result = size in a == size in b && eq(a[size], b[size], stack))){ break; }
}
}
} else {
if ('constructor' in a != 'constructor' in b || a.constructor != b.constructor) {
return false;
}
for (key in a) {
if (has(a, key)) {
size++;
if (!(result = has(b, key) && eq(a[key], b[key], stack))) { break; }
}
}
if (result) {
sizeB = 0;
for (key in b) {
if (has(b, key)) { ++sizeB; }
}
if (first) {
if (type === '<<=') {
result = size < sizeB;
} else if (type === '<==') {
result = size <= sizeB
} else {
result = size === sizeB;
}
} else {
first = false;
result = size === sizeB;
}
}
}
stack.pop();
return result;
}
}