-
Notifications
You must be signed in to change notification settings - Fork 4
Expand file tree
/
Copy path1437.html
More file actions
159 lines (159 loc) · 8.75 KB
/
Copy path1437.html
File metadata and controls
159 lines (159 loc) · 8.75 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
154
155
156
157
158
159
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>SmallBASIC | THROW</title>
<meta name="description" content="The THROW command (previously known as RTE) is used to initiate a catch-able error. If there is no surrounding TRY/CATCH block, THROW can be used to abort the program.">
<link rel="canonical" href="1437">
<link rel="keywords" href="THROW [info [, ...]]">
<link rel="stylesheet" href="/css/style.css">
<link rel="icon" type="image/png" href="/images/sb-desktop-32x32.png">
<script src="/clipboard.js"></script>
</head>
<body>
<button onclick="topFunction()" id="BackToTopBtn" title="Go to top">⯅</button>
<script src="/backtotop.js"></script>
<div class="wrapAll clearfix">
<nav class="navigation">
<div class="logo">
<a href="/"><img src='/images/sb-logo.png?v=2' alt="logo"></a>
</div>
<div class="navlinks">
<a href="/pages/download.html">Download</a>
<a href="/pages/news.html">News</a>
<a href="/pages/community.html">Community</a>
<a href="/pages/articles.html">Resources</a>
<a class='active' href="/pages/reference.html">Language Reference</a>
<a href="/pages/guide.html">SmallBASIC Manual</a>
</div>
</nav>
<div class="mainsection">
<div class="tabs clearfix">
<div class="tabsRight">
<a target="_github" href="https://github.com/smallbasic/smallbasic.github.io/blob/master/_build/reference/1437-language-throw.markdown">Edit</a>
<a target="_github" href="https://github.com/smallbasic/smallbasic.github.io/commits/master/_build/reference/1437-language-throw.markdown">History</a>
</div>
</div>
<div class="article">
<h1>THROW</h1>
<blockquote>THROW [info [, …]]</blockquote>
<div class="siteSub">
<p>
<a href="/">Home</a> >
<a href="/pages/reference.html">Reference</a> >
<a href="/pages/language.html">Language</a>
</p>
</div>
<p>The THROW command is used to initiate a catch-able error. If there is
no surrounding TRY/CATCH block, THROW can be used to abort the program.
Optional a string <code>info</code> can be used to create an error
message.</p>
<h3 id="example-1-abort-a-program">Example 1: Abort a program</h3>
<div class="sourceCode" id="cb1"><pre
class="sourceCode smallbasic"><code class="sourceCode smallbasic"><span id="cb1-1"><a href="#cb1-1" aria-hidden="true" tabindex="-1"></a><span class="kw">throw</span>(<span class="st">"Error"</span>)</span></code></pre></div>
<h3 id="example-2-initial-a-catch-able-error">Example 2: Initial a
catch-able error</h3>
<div class="sourceCode" id="cb2"><pre
class="sourceCode smallbasic"><code class="sourceCode smallbasic"><span id="cb2-1"><a href="#cb2-1" aria-hidden="true" tabindex="-1"></a><span class="kw">try</span></span>
<span id="cb2-2"><a href="#cb2-2" aria-hidden="true" tabindex="-1"></a> a = <span class="dv">1</span></span>
<span id="cb2-3"><a href="#cb2-3" aria-hidden="true" tabindex="-1"></a> <span class="kw">if(</span>a == <span class="dv">1</span>) <span class="kw">then th</span>row(<span class="st">"a == 1"</span>)</span>
<span id="cb2-4"><a href="#cb2-4" aria-hidden="true" tabindex="-1"></a> <span class="kw">if(</span>a == <span class="dv">2</span>) <span class="kw">then th</span>row(<span class="st">"a == 2"</span>)</span>
<span id="cb2-5"><a href="#cb2-5" aria-hidden="true" tabindex="-1"></a><span class="kw">catch</span> err</span>
<span id="cb2-6"><a href="#cb2-6" aria-hidden="true" tabindex="-1"></a> <span class="kw">print</span> <span class="st">"Error: "</span>; err</span>
<span id="cb2-7"><a href="#cb2-7" aria-hidden="true" tabindex="-1"></a><span class="kw">end try</span></span></code></pre></div>
<div class="lavenderBox">
<div class="header">Code samples using THROW</div>
<div class="linklist">
<a target="_github" href="https://raw.githubusercontent.com/smallbasic/smallbasic.samples/master/games 3/2048.bas">2048.bas </a>
<a target="_github" href="https://raw.githubusercontent.com/smallbasic/smallbasic.samples/master/games 1/7gables.bas">7gables.bas </a>
<a target="_github" href="https://raw.githubusercontent.com/smallbasic/smallbasic.samples/master/units/base64.bas">base64.bas </a>
<a target="_github" href="https://raw.githubusercontent.com/smallbasic/smallbasic.samples/master/network/duckduckgo.bas">duckduckgo.bas </a>
<a target="_github" href="https://raw.githubusercontent.com/smallbasic/smallbasic.samples/master/games 3/heap.bas">heap.bas </a>
<a target="_github" href="https://raw.githubusercontent.com/smallbasic/smallbasic.samples/master/games 3/klotski_solver.bas">klotski_solver.bas </a>
<a target="_github" href="https://raw.githubusercontent.com/smallbasic/smallbasic.samples/master/games 3/sensor.bas">sensor.bas </a>
</div>
</div>
<div class="lavenderBox">
<div class="header">Language</div>
<div class="linklist">
<a href="/reference/662.html">AND </a>
<a href="/reference/1424.html">AS </a>
<a href="/reference/663.html">BAND </a>
<a href="/reference/1428.html">BG </a>
<a href="/reference/664.html">BOR </a>
<a href="/reference/639.html">BYREF </a>
<a href="/reference/637.html">CALL </a>
<a href="/reference/640.html">CASE </a>
<a href="/reference/1426.html">CATCH </a>
<a href="/reference/678.html">CONST </a>
<a href="/reference/1419.html">DECLARE </a>
<a href="/reference/641.html">DEF </a>
<a href="/reference/642.html">DO </a>
<a href="/reference/643.html">ELIF </a>
<a href="/reference/644.html">ELSE </a>
<a href="/reference/645.html">ELSEIF </a>
<a href="/reference/679.html">END </a>
<a href="/reference/1427.html">END TRY </a>
<a href="/reference/646.html">ENDIF </a>
<a href="/reference/665.html">EQV </a>
<a href="/reference/648.html">EXIT </a>
<a href="/reference/1457.html">FALSE </a>
<a href="/reference/650.html">FI </a>
<a href="/reference/680.html">FOR </a>
<a href="/reference/651.html">FUNC </a>
<a href="/reference/681.html">GOSUB </a>
<a href="/reference/682.html">GOTO </a>
<a href="/reference/683.html">IF </a>
<a href="/reference/638.html">IFF </a>
<a href="/reference/666.html">IMP </a>
<a href="/reference/667.html">IN </a>
<a href="/reference/684.html">LABEL </a>
<a href="/reference/685.html">LET </a>
<a href="/reference/668.html">LIKE </a>
<a href="/reference/653.html">LOCAL </a>
<a href="/reference/1496.html">LSHIFT </a>
<a href="/reference/669.html">MDL </a>
<a href="/reference/670.html">MOD </a>
<a href="/reference/671.html">NAND </a>
<a href="/reference/654.html">NEXT </a>
<a href="/reference/672.html">NOR </a>
<a href="/reference/673.html">NOT </a>
<a href="/reference/686.html">ON </a>
<a href="/reference/674.html">OR </a>
<a href="/reference/688.html">REM </a>
<a href="/reference/689.html">REPEAT </a>
<a href="/reference/690.html">RETURN </a>
<a href="/reference/1497.html">RSHIFT </a>
<a href="/reference/655.html">SELECT </a>
<a href="/reference/1421.html">STEP </a>
<a href="/reference/656.html">STOP </a>
<a href="/reference/657.html">SUB </a>
<a href="/reference/658.html">THEN </a>
<a href="/reference/1437.html"><strong>THROW</strong> </a>
<a href="/reference/1420.html">TO </a>
<a href="/reference/1455.html">TRUE </a>
<a href="/reference/1425.html">TRY </a>
<a href="/reference/660.html">UNTIL </a>
<a href="/reference/661.html">USE </a>
<a href="/reference/1423.html">USG </a>
<a href="/reference/1422.html">USING </a>
<a href="/reference/691.html">WEND </a>
<a href="/reference/692.html">WHILE </a>
<a href="/reference/675.html">XNOR </a>
<a href="/reference/676.html">XOR </a>
</div>
</div>
</div>
<div class="pagefooter">
This page was last edited on Fri, 1 Sep 2023 15:59:38 +0200
|
<a href="https://en.wikipedia.org/wiki/Markdown" target="_blank" rel="nofollow">Markdown</a>
processed with
<a href="https://pandoc.org/MANUAL.html#pandocs-markdown" target="_blank" rel="nofollow">pandoc 3.1.12.1</a>
</div>
</div>
</div>
</body>
</html>