<snapdata remixID="10133643"><project name="U2L2p1-ShoppingList(create task)" 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="30" y="30"><block s="receiveInteraction"><l><option>clicked</option></l><comment w="53.333333333333336" collapsed="true">1.5</comment></block><custom-block s="clear list"></custom-block></script></scripts></sprite><sprite name="Add Item" idx="1" x="1.0572687224669153" y="49.52662358593355" heading="90" scale="1" volume="100" pan="0" rotation="1" draggable="true" costume="2" color="80,80,80,1" pen="tip" id="26"><costumes><list id="27"><item><costume name="" center-x="0" center-y="0" image="data:," id="28"/></item><item><costume name="Add Item" center-x="53" center-y="15" 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id="29"/></item></list></costumes><sounds><list struct="atomic" id="30"></list></sounds><blocks></blocks><variables></variables><scripts><comment x="10" y="157.33333333333334" w="170" collapsed="true">1.5 is in the Clear List sprite.</comment><comment x="10" y="188.66666666666666" w="170" collapsed="true">1.7 is in the Delete Item sprite.</comment><comment x="205.24446614583337" y="188.66666666666666" w="90" collapsed="false">add items manages complexity of list</comment><script x="34" y="313.66666666666663"><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><custom-block s="Add Item %s"><block s="getLastAnswer"></block><comment w="90" collapsed="false">custom procedure= custom procedure</comment></custom-block></script><script x="13.666666666666686" y="22"><block s="receiveGo"></block><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></scripts></sprite><sprite name="Delete Item" idx="3" x="1.0572687224669153" y="-50.473376414066536" heading="90" scale="1" volume="100" pan="0" rotation="1" draggable="true" costume="0" color="89.7599999999999,0,204,1" pen="tip" id="48"><wear><costume name="Delete Item" center-x="53" center-y="15" 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id="49"/></wear><costumes><list id="50"><item><costume name="Delete Item" center-x="53" center-y="15" 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id="51"/></item></list></costumes><sounds><list struct="atomic" id="52"></list></sounds><blocks></blocks><variables></variables><scripts><script x="15" y="10"><block s="receiveInteraction"><l><option>clicked</option></l></block><block s="doAsk"><l>What item do you want to delete?</l></block><custom-block s="delete item from shopping list %s"><block s="getLastAnswer"></block></custom-block></script><script x="12" y="312.66666666666663"><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><comment x="10" y="213.3333333333333" 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><comment x="173.9697265625" y="13" w="53.333333333333336" collapsed="true">1.7</comment></scripts></sprite><watcher var="shopping list" style="normal" x="5.655295138888505" y="5.655295138888889" color="243,118,29" extX="80" extY="144"/></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? %l"><block var="data"/></custom-block><script><block s="doReport"><block s="reportNewList"><list></list></block></block></script></block><block s="doReport"><block s="reportCONS"><block s="evaluate"><block var="function"/><list><block s="reportListItem"><l>1</l><block var="data"/></block></list></block><block s="evaluate"><block var="mapone"/><list><block s="reportCDR"><block var="data"/></block></list></block></block></block></script><list><l>data</l></list></block></block><block s="doSetVar"><l>mapmany</l><block s="reifyScript"><script><block s="doIf"><custom-block s="empty? 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%&apos;data&apos;" type="predicate" category="lists"><header></header><code></code><translations></translations><inputs><input type="%l"></input></inputs><script><block s="doReport"><block s="reportEquals"><block var="data"/><block s="reportNewList"><list></list></block></block></block></script></block-definition><block-definition s="keep items such that %&apos;pred&apos; from %&apos;data&apos;" type="reporter" category="lists"><header></header><code></code><translations></translations><inputs><input type="%predRing"></input><input type="%l"></input></inputs><script><block s="doWarp"><script><block s="doIf"><custom-block s="empty? %l"><block var="data"/></custom-block><script><block s="doReport"><block s="reportNewList"><list></list></block></block></script></block><block s="doIfElse"><block s="evaluate"><block var="pred"/><list><block s="reportListItem"><l>1</l><block var="data"/></block></list></block><script><block s="doReport"><block s="reportCONS"><block s="reportListItem"><l>1</l><block var="data"/></block><custom-block s="keep items such that %predRing from %l"><block var="pred"/><block s="reportCDR"><block var="data"/></block></custom-block></block></block></script><script><block s="doReport"><custom-block s="keep items such that %predRing from %l"><block var="pred"/><block s="reportCDR"><block var="data"/></block></custom-block></block></script></block></script></block></script></block-definition><block-definition s="combine with %&apos;function&apos; items of %&apos;data&apos;" type="reporter" category="lists"><header></header><code></code><translations></translations><inputs><input type="%repRing"></input><input type="%l"></input></inputs><script><block s="doWarp"><script><block s="doIf"><custom-block s="empty? %l"><block s="reportCDR"><block var="data"/></block></custom-block><script><block s="doReport"><block s="reportListItem"><l>1</l><block var="data"/></block></block></script></block><block s="doReport"><block s="evaluate"><block var="function"/><list><block s="reportListItem"><l>1</l><block var="data"/></block><custom-block s="combine with %repRing items of %l"><block var="function"/><block s="reportCDR"><block var="data"/></block></custom-block></list></block></block></script></block></script></block-definition><block-definition s="if %&apos;test&apos; then %&apos;true&apos; else %&apos;false&apos;" type="reporter" category="control"><header></header><code></code><translations></translations><inputs><input type="%b"></input><input type="%anyUE"></input><input type="%anyUE"></input></inputs><script><block s="doIfElse"><block var="test"/><script><block s="doReport"><block s="evaluate"><block var="true"/><list></list></block></block></script><script><block s="doReport"><block s="evaluate"><block var="false"/><list></list></block></block></script></block></script></block-definition><block-definition s="for %&apos;i&apos; = %&apos;start&apos; to %&apos;end&apos; %&apos;action&apos;" type="command" category="control"><header></header><code></code><translations></translations><inputs><input type="%upvar"></input><input type="%n">1</input><input type="%n">10</input><input type="%cs"></input></inputs><script><block s="doDeclareVariables"><list><l>step</l><l>tester</l></list></block><block s="doIfElse"><block s="reportGreaterThan"><block var="start"/><block var="end"/></block><script><block s="doSetVar"><l>step</l><l>-1</l></block><block s="doSetVar"><l>tester</l><block s="reifyReporter"><autolambda><block s="reportLessThan"><block var="i"/><block var="end"/></block></autolambda><list></list></block></block></script><script><block s="doSetVar"><l>step</l><l>1</l></block><block s="doSetVar"><l>tester</l><block s="reifyReporter"><autolambda><block s="reportGreaterThan"><block var="i"/><block var="end"/></block></autolambda><list></list></block></block></script></block><block s="doSetVar"><l>i</l><block var="start"/></block><block s="doUntil"><block s="evaluate"><block var="tester"/><list></list></block><script><block s="doRun"><block var="action"/><list></list></block><block s="doChangeVar"><l>i</l><block var="step"/></block></script></block></script></block-definition><block-definition s="join words %&apos;words&apos;" type="reporter" category="operators"><header></header><code></code><translations></translations><inputs><input type="%mult%txt"></input></inputs><script><block s="doWarp"><script><block s="doIf"><custom-block s="empty? %l"><block s="reportCDR"><block var="words"/></block></custom-block><script><block s="doReport"><block s="reportListItem"><l>1</l><block var="words"/></block></block></script></block><block s="doReport"><block s="reportJoinWords"><list><block s="reportListItem"><l>1</l><block var="words"/></block><l> </l><custom-block s="join words %mult%txt"><block s="reportCDR"><block var="words"/></block></custom-block></list></block></block></script></block></script></block-definition><block-definition s="list $arrowRight sentence %&apos;data&apos;" type="reporter" category="operators"><header></header><code></code><translations></translations><inputs><input type="%l"></input></inputs><script><block s="doWarp"><script><block s="doReport"><custom-block s="join words %mult%txt"><block var="data"/></custom-block></block></script></block></script></block-definition><block-definition s="sentence $arrowRight list %&apos;text&apos;" type="reporter" category="operators"><header></header><code></code><translations></translations><inputs><input type="%txt"></input></inputs><script><block s="doWarp"><script><block s="doReport"><block s="reportTextSplit"><block var="text"/><l><option>whitespace</option></l></block></block></script></block></script></block-definition><block-definition s="catch %&apos;tag&apos; %&apos;action&apos;" type="command" category="control"><header></header><code></code><translations></translations><inputs><input type="%upvar"></input><input type="%cs"></input></inputs><script><block s="doCallCC"><block s="reifyScript"><script><block s="doSetVar"><l>tag</l><block var="cont"/></block><block s="doRun"><block var="action"/><list></list></block></script><list><l>cont</l></list></block></block></script></block-definition><block-definition s="throw %&apos;cont&apos;" type="command" category="control"><header></header><code></code><translations></translations><inputs><input type="%s">catchtag</input></inputs><script><block s="doRun"><block var="cont"/><list></list></block></script></block-definition><block-definition s="catch %&apos;tag&apos; %&apos;value&apos;" type="reporter" category="control"><header></header><code></code><translations></translations><inputs><input type="%upvar"></input><input type="%anyUE"></input></inputs><script><block s="doCallCC"><block s="reifyScript"><script><block s="doSetVar"><l>tag</l><block var="cont"/></block><block s="doReport"><block s="evaluate"><block var="value"/><list></list></block></block></script><list><l>cont</l></list></block></block></script></block-definition><block-definition s="throw %&apos;tag&apos; %&apos;value&apos;" type="command" category="control"><header></header><code></code><translations></translations><inputs><input type="%s">catchtag</input><input type="%s"></input></inputs><script><block s="doRun"><block var="tag"/><list><block var="value"/></list></block></script></block-definition><block-definition s="for each %&apos;item&apos; of %&apos;data&apos; %&apos;action&apos;" type="command" category="lists"><header></header><code></code><translations></translations><inputs><input type="%upvar"></input><input type="%l"></input><input type="%cs"></input></inputs><script><block s="doUntil"><custom-block s="empty? %l"><block var="data"/></custom-block><script><block s="doSetVar"><l>item</l><block s="reportListItem"><l>1</l><block var="data"/></block></block><block s="doRun"><block var="action"/><list><block s="reportListItem"><l>1</l><block var="data"/></block></list></block><block s="doSetVar"><l>data</l><block s="reportCDR"><block var="data"/></block></block></script></block></script></block-definition><block-definition s="if %&apos;test&apos; do %&apos;action&apos; and pause all $pause-1-255-220-0" type="command" category="control"><header></header><code></code><translations></translations><inputs><input type="%boolUE"></input><input type="%cs"></input></inputs><script><block s="doDeclareVariables"><list><l>breakpoint</l></list></block><block s="doIf"><block s="evaluate"><block var="test"/><list></list></block><script><block s="doSetVar"><l>breakpoint</l><block var="test"/></block><block s="doShowVar"><l>breakpoint</l></block><block s="doRun"><block var="action"/><list></list></block><block s="doPauseAll"></block><block s="doHideVar"><l></l></block></script></block></script></block-definition><block-definition s="word $arrowRight list %&apos;word&apos;" type="reporter" category="operators"><header></header><code></code><translations></translations><inputs><input type="%txt"></input></inputs><script><block s="doWarp"><script><block s="doReport"><block s="reportTextSplit"><block var="word"/><l><option>letter</option></l></block></block></script></block></script></block-definition><block-definition s="ignore %&apos;x&apos;" type="command" category="control"><header></header><code></code><translations></translations><inputs><input type="%s"></input></inputs></block-definition><block-definition s="tell %&apos;sprite&apos; to %&apos;commands&apos;" type="command" category="sensing"><header></header><code></code><translations></translations><inputs><input type="%txt">Sprite</input><input type="%cs"></input></inputs><script><block s="doRun"><block s="reportAttributeOf"><block var="commands"/><block var="sprite"/></block><list></list></block></script></block-definition><block-definition s="ask for %&apos;reporter&apos; from %&apos;sprite&apos;" type="reporter" category="sensing"><header></header><code></code><translations></translations><inputs><input type="%repRing"></input><input type="%txt">Sprite</input></inputs><script><block s="doReport"><block s="evaluate"><block s="reportAttributeOf"><block var="reporter"/><block var="sprite"/></block><list></list></block></block></script></block-definition><block-definition s="tell %&apos;sprite&apos; %&apos;action&apos;" type="command" category="control"><header></header><code></code><translations></translations><inputs><input type="%s">Sprite</input><input type="%cs"></input></inputs><script><block s="doRun"><block s="reportAttributeOf"><block var="action"/><block var="sprite"/></block><list></list></block></script></block-definition><block-definition s="ask %&apos;sprite&apos; %&apos;expression&apos;" type="reporter" category="control"><header></header><code></code><translations></translations><inputs><input type="%s">Sprite</input><input type="%repRing"></input></inputs><script><block s="doReport"><block s="evaluate"><block s="reportAttributeOf"><block var="expression"/><block var="sprite"/></block><list></list></block></block></script></block-definition><block-definition s="Add Item %&apos;added Item&apos;" type="command" category="lists"><header></header><code></code><translations></translations><inputs><input type="%s"></input></inputs><script><block s="doIfElse"><block s="reportListContainsItem"><block var="shopping list"/><block var="added Item"/></block><script><block s="doSayFor"><block s="reportJoinWords"><list><block var="added Item"/><l> is already in the list.</l></list></block><l>2</l></block></script><script><block s="doInsertInList"><block var="added Item"/><l><option>last</option></l><block var="shopping list"/></block><block s="doSayFor"><block s="reportJoinWords"><list><l>The item </l><block var="added Item"/><l> has been added to your shopping list</l></list></block><l>3</l></block></script></block></script></block-definition><block-definition s="clear list" type="command" category="lists"><header></header><code></code><translations></translations><inputs></inputs><script><block s="doAsk"><l>Are you sure you want to delete everything from the list? Type yes or no.</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><block s="doSayFor"><l>Your shopping list is cleared.</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><script><block s="doSayFor"><l>Your shopping list is unchanged.</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></block-definition><block-definition s="delete item from shopping list %&apos;deleted item&apos;" type="command" category="other"><comment x="0" y="0" w="90" collapsed="false">&quot;deleted item&quot; is input/parameter</comment><header></header><code></code><translations></translations><inputs><input type="%s"></input></inputs><script><block s="doDeclareVariables"><list><l>isDeleted</l></list></block><block s="doSetVar"><l>isDeleted</l><block s="reportBoolean"><l><bool>false</bool></l></block></block><block s="doFor"><l>i</l><l>1</l><block s="reportListAttribute"><l><option>length</option></l><block var="shopping list"/></block><script><block s="doIf"><block s="reportEquals"><block var="deleted item"/><block s="reportListItem"><block var="i"/><block var="shopping list"/></block></block><script><block s="doDeleteFromList"><block var="i"/><block var="shopping list"/></block><block s="doSetVar"><l>isDeleted</l><block s="reportBoolean"><l><bool>true</bool></l></block></block></script><comment w="90" collapsed="false">if meets requirement of selection</comment></block></script><comment w="90" collapsed="false">use length of list on create task, it manages the complexity so that you dont have to change anything</comment></block><block s="doIfElse"><block s="reportEquals"><block var="isDeleted"/><block s="reportBoolean"><l><bool>true</bool></l></block></block><script><block s="doSayFor"><block s="reportJoinWords"><list><block var="deleted item"/><l> has been deleted from the list.</l></list></block><l>2</l></block></script><script><block s="doSayFor"><block s="reportJoinWords"><list><block var="deleted item"/><l> is not in the list.</l></list></block><l>2</l></block></script><comment w="90" collapsed="false">This meets the requirement of the two calls to the function resulting in different outputs</comment></block></script><scripts><comment x="338.4375" y="63.66666666666657" w="90" collapsed="false">for i meets requirement of iteration</comment><comment x="459" y="86.56666666666729" w="90" collapsed="false">requirement of selection is already met</comment></scripts></block-definition></blocks><variables><variable name="shopping list"><list struct="atomic" id="748"></list></variable></variables></project><media name="U2L2p1-ShoppingList(create task)" app="Snap! 6, https://snap.berkeley.edu" version="1"></media></snapdata>