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<!DOCTYPE html>
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<title>SmallBASIC | SWAP</title>
<meta name="description" content="Exchanges the values of two variables. The parameters may be variables of any type.">
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<h1>SWAP</h1>
<blockquote>SWAP a, b</blockquote>
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<p>Exchanges the values of the two variables <code>a</code> and
<code>b</code>. <code>a</code> and <code>b</code> may be variables of
any type.</p>
<h3 id="example-1-swap-numbers">Example 1: Swap numbers</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>a = <span class="dv">1</span></span>
<span id="cb1-2"><a href="#cb1-2" aria-hidden="true" tabindex="-1"></a>b = <span class="dv">2</span></span>
<span id="cb1-3"><a href="#cb1-3" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb1-4"><a href="#cb1-4" aria-hidden="true" tabindex="-1"></a><span class="kw">print</span> <span class="st">"Before: "</span>; a, b <span class="co">' Output: Before: 1 2</span></span>
<span id="cb1-5"><a href="#cb1-5" aria-hidden="true" tabindex="-1"></a><span class="fu">swap</span> a,b</span>
<span id="cb1-6"><a href="#cb1-6" aria-hidden="true" tabindex="-1"></a><span class="kw">print</span> <span class="st">"After: "</span>; a, b <span class="co">' Output: Before: 2 1</span></span></code></pre></div>
<h3 id="example-2-swap-strings">Example 2: Swap strings</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>s1 = <span class="st">"abc"</span></span>
<span id="cb2-2"><a href="#cb2-2" aria-hidden="true" tabindex="-1"></a>s2 = <span class="st">"xyz"</span></span>
<span id="cb2-3"><a href="#cb2-3" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb2-4"><a href="#cb2-4" aria-hidden="true" tabindex="-1"></a><span class="kw">print</span> <span class="st">"Before: "</span>; s1, s2 <span class="co">' Output: Before: abc xyz</span></span>
<span id="cb2-5"><a href="#cb2-5" aria-hidden="true" tabindex="-1"></a><span class="fu">swap</span> s1, s2</span>
<span id="cb2-6"><a href="#cb2-6" aria-hidden="true" tabindex="-1"></a><span class="kw">print</span> <span class="st">"After: "</span>; s1, s2 <span class="co">' Output: After: xyz abc</span></span></code></pre></div>
<h3 id="example-3-swap-arrays">Example 3: Swap arrays</h3>
<div class="sourceCode" id="cb3"><pre
class="sourceCode smallbasic"><code class="sourceCode smallbasic"><span id="cb3-1"><a href="#cb3-1" aria-hidden="true" tabindex="-1"></a>A = [<span class="dv">1</span>,<span class="dv">2</span>,<span class="dv">3</span>]</span>
<span id="cb3-2"><a href="#cb3-2" aria-hidden="true" tabindex="-1"></a>B = [<span class="dv">7</span>,<span class="dv">8</span>,<span class="dv">9</span>]</span>
<span id="cb3-3"><a href="#cb3-3" aria-hidden="true" tabindex="-1"></a></span>
<span id="cb3-4"><a href="#cb3-4" aria-hidden="true" tabindex="-1"></a><span class="kw">print</span> <span class="st">"Before: "</span>; A, B <span class="co">' Output: Before: [1,2,3] [7,8,9]</span></span>
<span id="cb3-5"><a href="#cb3-5" aria-hidden="true" tabindex="-1"></a><span class="fu">swap</span> A, B</span>
<span id="cb3-6"><a href="#cb3-6" aria-hidden="true" tabindex="-1"></a><span class="kw">print</span> <span class="st">"After: "</span>; A, B <span class="co">' Output: After: [7,8,9] [1,2,3]</span></span></code></pre></div>
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<div class="header">Code samples using SWAP</div>
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<a target="_github" href="https://raw.githubusercontent.com/smallbasic/smallbasic.samples/master/games 3/100lines.bas">100lines.bas </a>
<a target="_github" href="https://raw.githubusercontent.com/smallbasic/smallbasic.samples/master/games 1/betrayal: crows ii.bas">betrayal: crows ii.bas </a>
<a target="_github" href="https://raw.githubusercontent.com/smallbasic/smallbasic.samples/master/games 2/btn 21.bas">btn 21.bas </a>
<a target="_github" href="https://raw.githubusercontent.com/smallbasic/smallbasic.samples/master/mathematics/leastq.bas">leastq.bas </a>
<a target="_github" href="https://raw.githubusercontent.com/smallbasic/smallbasic.samples/master/games 2/memory match game.bas">memory match game.bas </a>
<a target="_github" href="https://raw.githubusercontent.com/smallbasic/smallbasic.samples/master/graphics 4/mousef.bas">mousef.bas </a>
<a target="_github" href="https://raw.githubusercontent.com/smallbasic/smallbasic.samples/master/games 2/nim.bas">nim.bas </a>
<a target="_github" href="https://raw.githubusercontent.com/smallbasic/smallbasic.samples/master/misc/Misc Bpf/no window setup.bas">no window setup.bas </a>
<a target="_github" href="https://raw.githubusercontent.com/smallbasic/smallbasic.samples/master/games 1/pirate.bas">pirate.bas </a>
<a target="_github" href="https://raw.githubusercontent.com/smallbasic/smallbasic.samples/master/games 1/rogue trader.bas">rogue trader.bas </a>
<a target="_github" href="https://raw.githubusercontent.com/smallbasic/smallbasic.samples/master/graphics 2/screen saver number 1.bas">screen saver number 1.bas </a>
<a target="_github" href="https://raw.githubusercontent.com/smallbasic/smallbasic.samples/master/graphics 1/screensaveandload.bas">screensaveandload.bas </a>
<a target="_github" href="https://raw.githubusercontent.com/smallbasic/smallbasic.samples/master/graphics 1/screensv_ld_compres.bas">screensv_ld_compres.bas </a>
<a target="_github" href="https://raw.githubusercontent.com/smallbasic/smallbasic.samples/master/graphics 2/siepinsky forest.bas">siepinsky forest.bas </a>
<a target="_github" href="https://raw.githubusercontent.com/smallbasic/smallbasic.samples/master/misc/Misc Bpf/slide sq w mouse.bas">slide sq w mouse.bas </a>
<a target="_github" href="https://raw.githubusercontent.com/smallbasic/smallbasic.samples/master/games 2/sliding blocks puzzle.bas">sliding blocks puzzle.bas </a>
<a target="_github" href="https://raw.githubusercontent.com/smallbasic/smallbasic.samples/master/misc/Misc Bpf/sliding blocks.bas">sliding blocks.bas </a>
<a target="_github" href="https://raw.githubusercontent.com/smallbasic/smallbasic.samples/master/graphics 3/star worlds.bas">star worlds.bas </a>
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<div class="header">Data</div>
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<a href="/reference/581.html">APPEND </a>
<a href="/reference/1432.html">ARRAY </a>
<a href="/reference/569.html">DATA </a>
<a href="/reference/542.html">DELETE </a>
<a href="/reference/570.html">DIM </a>
<a href="/reference/543.html">EMPTY </a>
<a href="/reference/571.html">ERASE </a>
<a href="/reference/544.html">INSERT </a>
<a href="/reference/555.html">ISARRAY </a>
<a href="/reference/556.html">ISDIR </a>
<a href="/reference/557.html">ISFILE </a>
<a href="/reference/558.html">ISLINK </a>
<a href="/reference/1430.html">ISMAP </a>
<a href="/reference/559.html">ISNUMBER </a>
<a href="/reference/560.html">ISSTRING </a>
<a href="/reference/561.html">LBOUND </a>
<a href="/reference/562.html">LEN </a>
<a href="/reference/546.html">READ </a>
<a href="/reference/547.html">REDIM </a>
<a href="/reference/572.html">RESTORE </a>
<a href="/reference/548.html">SEARCH </a>
<a href="/reference/549.html">SORT </a>
<a href="/reference/550.html"><strong>SWAP</strong> </a>
<a href="/reference/567.html">UBOUND </a>
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This page was last edited on Tue, 22 Aug 2023 16:52:11 +0200
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