-
Notifications
You must be signed in to change notification settings - Fork 5
/
demo.html
164 lines (152 loc) · 3.87 KB
/
demo.html
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
154
155
156
157
158
159
160
161
162
163
164
<!doctype html>
<html>
<head>
<meta charset="UTF-8">
<title>simply-lazy</title>
<style>
* {margin: 0; padding: 0;}
.repo-link {
position: absolute;
top: 0;
right: 0;
padding: 10px 10px 20px 20px;
background: #fafafa;
border-radius: 0 0 0 80%;
transition: all 0.2s;
}
.repo-link:hover {
background: #f7f7f7;
}
.demo {
display: flex;
flex-direction: row;
font: 14px/1.5 consolas, monospace;
border-radius: 5px;
color: #333;
border-bottom: 1px solid #d5d5d5;
}
.demo:last-child {
border-bottom: none;
}
.demo .code,
.demo .output,
.demo .count {
width: 40%;
padding: 20px 30px;
box-sizing: border-box;
}
.demo .count {
width: 20%;
}
.demo .code {
overflow: auto;
}
.demo pre,
.demo code {
font: inherit;
}
.demo .code:before,
.demo .output:before,
.demo .count:before {
display: block;
color: #999;
}
.demo .code:before {
content: '// code:';
}
.demo .output:before {
content: '// output:';
}
.demo .count:before {
content: '// count:';
}
</style>
</head>
<body>
<a href="https://github.com/luobotang/simply-lazy" class="repo-link">
<svg aria-hidden="true" class="octicon octicon-mark-github" height="16" version="1.1" viewBox="0 0 16 16" width="16"><path fill-rule="evenodd" d="M8 0C3.58 0 0 3.58 0 8c0 3.54 2.29 6.53 5.47 7.59.4.07.55-.17.55-.38 0-.19-.01-.82-.01-1.49-2.01.37-2.53-.49-2.69-.94-.09-.23-.48-.94-.82-1.13-.28-.15-.68-.52-.01-.53.63-.01 1.08.58 1.23.82.72 1.21 1.87.87 2.33.66.07-.52.28-.87.51-1.07-1.78-.2-3.64-.89-3.64-3.95 0-.87.31-1.59.82-2.15-.08-.2-.36-1.02.08-2.12 0 0 .67-.21 2.2.82.64-.18 1.32-.27 2-.27.68 0 1.36.09 2 .27 1.53-1.04 2.2-.82 2.2-.82.44 1.1.16 1.92.08 2.12.51.56.82 1.27.82 2.15 0 3.07-1.87 3.75-3.65 3.95.29.25.54.73.54 1.48 0 1.07-.01 1.93-.01 2.2 0 .21.15.46.55.38A8.013 8.013 0 0 0 16 8c0-4.42-3.58-8-8-8z"></path></svg>
</a>
<script src="index.js"></script>
<script>
var demos = [(Lazy, print) => {
Lazy([1, 2, 3, 4, 5, 6, 7, 8, 9, 10])
.map(i => i * 2)
.each(i => print(i))
}, (Lazy, print) => {
Lazy([1, 2, 3, 4, 5, 6, 7, 8, 9, 10])
.map(i => i * 2)
.filter(i => i <= 10)
.each(i => print(i))
}, (Lazy, print) => {
Lazy([1, 2, 3, 4, 5, 6, 7, 8, 9, 10])
.map(i => i * 2)
.filter(i => i <= 10)
.take(3)
.each(i => print(i))
}, (Lazy, print) => {
Lazy([1, 2, 3, 4, 5, 6, 7, 8, 9, 10])
.filter(i => i <= 5)
.each(i => print(i))
}, (Lazy, print) => {
Lazy([1, 2, 3, 4, 5, 6, 7, 8, 9, 10])
.filter(i => i <= 5)
.map(i => i * 2)
.each(i => print(i))
}, (Lazy, print) => {
Lazy([1, 2, 3, 4, 5, 6, 7, 8, 9, 10])
.filter(i => i <= 5)
.map(i => i * 2)
.take(3)
.each(i => print(i))
}]
function renderDemo(demoFn) {
var el = document.createElement('div')
el.classList.add('demo')
var count = {map: 0, filter: 0}
var _lazy = list => proxySeq(Lazy(list))
var output = []
var print = msg => output.push(msg)
demoFn(_lazy, print)
function proxySeq(seq) {
var handler = {
get(target, name) {
// captur method `map` and `filter`
if (name === 'map' || name === 'filter') {
// replace method with function that returns another proxy seq
return fn => {
// replace callback fn to count fn's call
var _fn = (v, i) => {
count[name]++
return fn(v, i)
}
return proxySeq(target[name](_fn))
}
} else {
return target[name]
}
}
}
return new Proxy(seq, handler)
}
el.innerHTML = (
'<div class="code">' +
'<pre>' +
'<code>' +
demoFn.toString().replace('(Lazy, print) => {\n', '').replace(/\n}$/, '') +
'</code>' +
'</pre>' +
'</div>' +
'<div class="output">' +
output.join('<br>') +
'</div>' +
'<div class="count">' +
'map: ' + count.map + '<br>' +
'filter: ' + count.filter +
'</div>'
)
document.body.appendChild(el)
}
demos.forEach(renderDemo)
</script>
</body>
</html>