-
Notifications
You must be signed in to change notification settings - Fork 0
/
objput.js
66 lines (44 loc) · 1.44 KB
/
objput.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
/*jslint indent: 2, maxlen: 80, continue: false, unparam: false, node: true */
/* -*- tab-width: 2 -*- */
'use strict';
var arSlc = Array.prototype.slice;
function zip(a, b, f) { return a.map(function (v, i) { return f(v, b[i]); }); }
function ifThis(x, t) { return (x === 'this' ? t : x); }
function core(d, k, v) {
if (k === null) { return; }
if (k === false) { return; }
if (k === undefined) { return; }
if (k && k.map) { return zip(k, v, core.bind(null, d)); }
d[k] = v;
}
function objPut(d, k, v, cb) {
core(d, k, v);
if (cb) { return cb(); }
return d;
}
objPut.put = objPut;
objPut.core = core;
objPut.cb = function (d, k) {
return function (v, cb) { return objPut(ifThis(d, this), k, v, cb); };
};
objPut.mthd = function (k, v, cb) { return objPut(this, k, v, cb); };
function mkCbPicker(c) {
if (c === +c) {
if (c < 0) { return function (a) { return a[a.length + c]; }; }
return function (a) { return a[c]; };
}
if (c === 'shift') { return function (a) { return a.shift(); }; }
if (c === 'pop') { return function (a) { return a.pop(); }; }
}
objPut.args = function (d, k, n, cb) {
if (n !== true) { n = (+n || 0); }
var p = (cb && (!cb.apply) && mkCbPicker(cb)),
s = (d || (n === true));
return function () {
var a = arguments, c = cb;
if (s) { a = arSlc.call(a); }
if (p) { c = p(a); }
return objPut(ifThis(d, this), k, (n === true ? a : a[n]), c);
};
};
module.exports = objPut;