<snapdata remixID="10208392"><project name="U2L2p1-ShoppingList" app="Snap! 6, https://snap.berkeley.edu" version="1"><notes></notes><thumbnail>data:image/png;base64,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id="17"/></item><item><costume name="Clear List" center-x="53" center-y="15" 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id="18"/></item></list></costumes><sounds><list struct="atomic" id="19"></list></sounds><blocks></blocks><variables></variables><scripts><script x="13.333333333333343" y="13.333333333333329"><block s="receiveInteraction"><l><option>clicked</option></l><comment w="53.333333333333336" collapsed="true">1.5</comment></block><block s="doAsk"><l>Are you sure you want to delete everything from the list?</l></block><block s="doIfElse"><block s="reportEquals"><block s="getLastAnswer"></block><l>yes</l></block><script><block s="doSetVar"><l>shopping list</l><block s="reportNewList"><list></list></block></block></script><script><block s="doSayFor"><l>Okay, I won&apos;t.</l><l>2</l><comment w="177.33333333333334" collapsed="false">The ELSE part isn&apos;t required by the problem, but it&apos;s bad user interface design to just silently do nothing -- it makes the user nervous.</comment></block></script></block></script></scripts></sprite><sprite name="Add Item" idx="1" x="0" y="50" heading="90" scale="1" volume="100" pan="0" rotation="1" draggable="true" costume="2" color="80,80,80,1" pen="tip" id="46"><costumes><list id="47"><item><costume name="" center-x="0" center-y="0" image="data:," id="48"/></item><item><costume name="Add Item" center-x="53" center-y="15" 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id="49"/></item></list></costumes><sounds><list struct="atomic" id="50"></list></sounds><blocks></blocks><variables></variables><scripts><script x="13.333333333333343" y="18"><block s="doSetVar"><l>shopping list</l><block s="reportNewList"><list></list></block><comment w="90" collapsed="true">page 1, ex. 2</comment></block></script><script x="12.666666666666657" y="60.66666666666666"><block s="receiveInteraction"><l><option>clicked</option></l><comment w="53.333333333333336" collapsed="true">1.3</comment></block><block s="doAsk"><l>What item should I add to the shopping list?</l></block><block s="doAddToList"><block s="getLastAnswer"></block><block var="shopping list"/></block></script><comment x="12.666666666666657" y="161.33333333333334" w="170" collapsed="true">1.5 is in the Clear List sprite.</comment><comment x="12.666666666666657" y="192.66666666666666" w="170" collapsed="true">1.7 is in the Delete Item sprite.</comment></scripts></sprite><sprite name="Delete Item" idx="3" x="0" y="-50" heading="90" scale="1" volume="100" pan="0" rotation="1" draggable="true" costume="0" color="89.7599999999999,0,204,1" pen="tip" id="68"><wear><costume name="Delete Item" center-x="53" center-y="15" 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id="69"/></wear><costumes><list id="70"><item><costume name="Delete Item" center-x="53" center-y="15" 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id="71"/></item></list></costumes><sounds><list struct="atomic" id="72"></list></sounds><blocks></blocks><variables></variables><scripts><script x="13.333333333333343" y="13.333333333333329"><block s="receiveInteraction"><l><option>clicked</option></l><comment w="53.333333333333336" collapsed="true">1.7</comment></block><block s="doAsk"><l>Enter the item number of the item you want to delete.</l></block><block s="doDeleteFromList"><block s="getLastAnswer"></block><block var="shopping list"/></block></script><comment x="13.333333333333343" y="102.66666666666666" w="320" collapsed="false">The above is all that&apos;s required.  But when deleting something, especially selected by number, it&apos;s a good idea to get confirmation:</comment><script x="13.333333333333343" y="164.00000000000003"><block s="doDeclareVariables"><list><l>item number</l></list></block><block s="doAsk"><l>Enter the item number of the item you want to delete.</l></block><block s="doSetVar"><l>item number</l><block s="getLastAnswer"></block></block><block s="doAsk"><block s="reportJoinWords"><list><l>Delete </l><block s="reportListItem"><block var="item number"/><block var="shopping list"/></block><l>?</l></list></block></block><block s="doIfElse"><block s="reportEquals"><block s="getLastAnswer"></block><l>yes</l></block><script><block s="doDeleteFromList"><block var="item number"/><block var="shopping list"/></block></script><script><block s="doSayFor"><l>Operation cancelled.</l><l>2</l></block></script></block></script></scripts></sprite><watcher var="shopping list" style="normal" x="10" y="10" color="243,118,29" extX="120" extY="105"/></sprites></stage><hidden></hidden><headers></headers><code></code><blocks><block-definition s="map %&apos;function&apos; over %&apos;lists&apos;" type="reporter" category="lists"><header></header><code></code><translations></translations><inputs><input type="%repRing"></input><input type="%mult%l"></input></inputs><script><block s="doWarp"><script><block s="doDeclareVariables"><list><l>mapone</l><l>mapmany</l></list></block><block s="doSetVar"><l>mapone</l><block s="reifyScript"><script><block s="doIf"><custom-block s="empty? 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