-
Notifications
You must be signed in to change notification settings - Fork 116
/
index.html
187 lines (154 loc) · 5.57 KB
/
index.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
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
<!DOCTYPE html>
<html>
<head>
<title>How Do I Declare A Block in Objective-C?</title>
<style>
body {
background-color: #002b36;
color: #839496;
font-family: Lucida Grande, sans-serif;
font-size: 20px;
padding: 40px;
padding-bottom: 0;
}
strong {
color: #268bd2;
}
h1 {
font-size: 40px;
margin-bottom: 1.5em;
text-align: center;
}
h2 {
font-weight: normal;
}
.return {
color: #2aa198;
}
.name {
color: #BC8800;
}
.parameter-types, .parameters {
color: #7C9F00;
}
.nullability {
color: #EC407A;
}
.disclaimer {
line-height: 2em;
}
code {
display: block;
font-family: Monaco, Menlo, monospace;
font-size: 20px;
margin-bottom: 3em;
margin-left: 40px;
margin-top: 1.5em;
}
footer {
font-size: 12px;
margin-top: 200px;
opacity: 0.4;
text-align: right;
}
a {
color: #0088D9;
text-decoration: none;
}
</style>
<style media="print">
body {
background-color: #FFFFFF;
font-size: 16px;
padding: 20px;
}
h1 {
font-size: 28px;
margin-bottom: 1em;
}
code {
font-size: 16px;
margin-bottom: 2em;
margin-left: 20px;
}
footer {
font-size: 10px;
margin-top: 40px;
}
</style>
<link rel="apple-touch-icon" sizes="57x57" href="/apple-touch-icon-57x57.png">
<link rel="apple-touch-icon" sizes="114x114" href="/apple-touch-icon-114x114.png">
<link rel="apple-touch-icon" sizes="72x72" href="/apple-touch-icon-72x72.png">
<link rel="apple-touch-icon" sizes="144x144" href="/apple-touch-icon-144x144.png">
<link rel="apple-touch-icon" sizes="60x60" href="/apple-touch-icon-60x60.png">
<link rel="apple-touch-icon" sizes="120x120" href="/apple-touch-icon-120x120.png">
<link rel="apple-touch-icon" sizes="76x76" href="/apple-touch-icon-76x76.png">
<link rel="apple-touch-icon" sizes="152x152" href="/apple-touch-icon-152x152.png">
<link rel="icon" type="image/png" href="/favicon-196x196.png" sizes="196x196">
<link rel="icon" type="image/png" href="/favicon-160x160.png" sizes="160x160">
<link rel="icon" type="image/png" href="/favicon-96x96.png" sizes="96x96">
<link rel="icon" type="image/png" href="/favicon-16x16.png" sizes="16x16">
<link rel="icon" type="image/png" href="/favicon-32x32.png" sizes="32x32">
<link rel="mask-icon" href="pinned-tab.svg" color="#002b36">
</head>
<body>
<h1>How Do I Declare A Block in Objective-C?</h1>
<div>
<h2>As a <strong>local variable</strong>:</h2>
<code>
<span class="return">returnType</span> (^<span class="name">blockName</span>)(<span class="parameter-types">parameterTypes</span>) = ^<span class="return">returnType</span>(<span class="parameters">parameters</span>) {...};
</code>
</div>
<div>
<h2>As a <strong>property</strong>:</h2>
<code>
@property (nonatomic, copy, <span class="nullability">nullability</span>) <span class="return">returnType</span> (^<span class="name">blockName</span>)(<span class="parameter-types">parameterTypes</span>);
</code>
</div>
<div>
<h2>As a <strong>method parameter</strong>:</h2>
<code>
- (void)someMethodThatTakesABlock:(<span class="return">returnType</span> (^<span class="nullability">nullability</span>)(<span class="parameter-types">parameterTypes</span>))<span class="name">blockName</span>;
</code>
</div>
<div>
<h2>As an <strong>argument to a method call</strong>:</h2>
<code>
[someObject someMethodThatTakesABlock:^<span class="return">returnType</span> (<span class="parameters">parameters</span>) {...}];
</code>
</div>
<div>
<h2>As a <strong>parameter to a C function</strong>:</h2>
<code>
void SomeFunctionThatTakesABlock(<span class="return">returnType </span>(^<span class="name">blockName</span>)(<span class="parameter-types">parameterTypes</span>));<br/>
</code>
</div>
<div>
<h2>As a <strong>typedef</strong>:</h2>
<code>
typedef <span class="return">returnType</span> (^<span class="name">TypeName</span>)(<span class="parameter-types">parameterTypes</span>);<br/>
<span class="name">TypeName</span> blockName = ^<span class="return">returnType</span>(<span class="parameters">parameters</span>) {...};
</code>
</div>
<div class="disclaimer">
This site is not intended to be an exhaustive list of all possible uses of blocks.<br>
If you find yourself needing syntax not listed here, it is likely that a <strong>typedef</strong> would make your
code more readable.<br>
<br>
Unable to access this site due to the profanity in the URL? <strong><a href="http://goshdarnblocksyntax.com">http://goshdarnblocksyntax.com</a></strong>
is a more work-friendly mirror.
</div>
<footer>By <a href="http://lazerwalker.com">Em Lazer-Walker</a>, who has a very bad memory for this sort of thing.<br />
Like this site? Consider throwing me a few bucks via <a href='https://ko-fi.com/A2223KQN'>Ko-fi</a>.</footer>
<script>
(function (i, s, o, g, r, a, m) {
i['GoogleAnalyticsObject'] = r; i[r] = i[r] || function () {
(i[r].q = i[r].q || []).push(arguments)
}, i[r].l = 1 * new Date(); a = s.createElement(o),
m = s.getElementsByTagName(o)[0]; a.async = 1; a.src = g; m.parentNode.insertBefore(a, m)
})(window, document, 'script', '//www.google-analytics.com/analytics.js', 'ga');
ga('create', 'UA-43658906-1', 'fuckingblocksyntax.com');
ga('send', 'pageview');
</script>
</body>
</html>