Arr.js
2.41 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
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
/**
* Arr.js
*
* Released under LGPL License.
* Copyright (c) 1999-2015 Ephox Corp. All rights reserved
*
* License: http://www.tinymce.com/license
* Contributing: http://www.tinymce.com/contributing
*/
/**
* Array utility class.
*
* @private
* @class tinymce.util.Arr
*/
define("tinymce/util/Arr", [], function() {
var isArray = Array.isArray || function(obj) {
return Object.prototype.toString.call(obj) === "[object Array]";
};
function toArray(obj) {
var array = obj, i, l;
if (!isArray(obj)) {
array = [];
for (i = 0, l = obj.length; i < l; i++) {
array[i] = obj[i];
}
}
return array;
}
function each(o, cb, s) {
var n, l;
if (!o) {
return 0;
}
s = s || o;
if (o.length !== undefined) {
// Indexed arrays, needed for Safari
for (n = 0, l = o.length; n < l; n++) {
if (cb.call(s, o[n], n, o) === false) {
return 0;
}
}
} else {
// Hashtables
for (n in o) {
if (o.hasOwnProperty(n)) {
if (cb.call(s, o[n], n, o) === false) {
return 0;
}
}
}
}
return 1;
}
function map(array, callback) {
var out = [];
each(array, function(item, index) {
out.push(callback(item, index, array));
});
return out;
}
function filter(a, f) {
var o = [];
each(a, function(v, index) {
if (!f || f(v, index, a)) {
o.push(v);
}
});
return o;
}
function indexOf(a, v) {
var i, l;
if (a) {
for (i = 0, l = a.length; i < l; i++) {
if (a[i] === v) {
return i;
}
}
}
return -1;
}
function reduce(collection, iteratee, accumulator, thisArg) {
var i = 0;
if (arguments.length < 3) {
accumulator = collection[0];
}
for (; i < collection.length; i++) {
accumulator = iteratee.call(thisArg, accumulator, collection[i], i);
}
return accumulator;
}
function findIndex(array, predicate, thisArg) {
var i, l;
for (i = 0, l = array.length; i < l; i++) {
if (predicate.call(thisArg, array[i], i, array)) {
return i;
}
}
return -1;
}
function find(array, predicate, thisArg) {
var idx = findIndex(array, predicate, thisArg);
if (idx !== -1) {
return array[idx];
}
return undefined;
}
function last(collection) {
return collection[collection.length - 1];
}
return {
isArray: isArray,
toArray: toArray,
each: each,
map: map,
filter: filter,
indexOf: indexOf,
reduce: reduce,
findIndex: findIndex,
find: find,
last: last
};
});