<snapdata remixID="13240257"><project name="U3L1-ShoppingList_Empty to Students 1-22" app="Snap! 9.0, https://snap.berkeley.edu" version="2"><notes></notes><thumbnail>data:image/png;base64,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</thumbnail><scenes select="1"><scene name="U3L1-ShoppingList_Empty to Students 1-22"><notes></notes><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><list></list></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? %l"><block s="reportListItem"><l>1</l><block var="data lists"/></block></custom-block><script><block s="doReport"><block s="reportNewList"><list></list></block></block></script><list></list></block><block s="doReport"><block s="reportCONS"><block s="evaluate"><block var="function"/><custom-block s="map %repRing over %mult%l"><block s="reifyReporter"><autolambda><block s="reportListItem"><l>1</l><l/></block></autolambda><list></list></block><list><block var="data lists"/></list></custom-block></block><block s="evaluate"><block var="mapmany"/><list><custom-block s="map %repRing over %mult%l"><block s="reifyReporter"><autolambda><block s="reportCDR"><l/></block></autolambda><list></list></block><list><block var="data lists"/></list></custom-block></list></block></block></block></script><list><l>data lists</l></list></block></block><block s="doIfElse"><custom-block s="empty? %l"><block s="reportCDR"><block var="lists"/></block></custom-block><script><block s="doReport"><block s="evaluate"><block var="mapone"/><list><block s="reportListItem"><l>1</l><block var="lists"/></block></list></block></block></script><script><block s="doReport"><block s="evaluate"><block var="mapmany"/><list><block var="lists"/></list></block></block></script></block></script></block></script></block-definition><block-definition s="empty? %&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="reportVariadicEquals"><list><block var="data"/><block s="reportNewList"><list></list></block></list></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><list></list></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><list></list></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="reportVariadicGreaterThan"><list><block var="start"/><block var="end"/></list></block><script><block s="doSetVar"><l>step</l><l>-1</l></block><block s="doSetVar"><l>tester</l><block s="reifyReporter"><autolambda><block s="reportVariadicLessThan"><list><block var="i"/><block var="end"/></list></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="reportVariadicGreaterThan"><list><block var="i"/><block var="end"/></list></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><list></list></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><list></list></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" type="command" category="other"><header></header><code></code><translations></translations><inputs></inputs><script><block s="doAsk"><l>What would you like to add to the list?</l></block><block s="doAddToList"><block s="getLastAnswer"></block><block var="shoppingList"/></block></script></block-definition><block-definition s="delete" type="command" category="other"><header></header><code></code><translations></translations><inputs></inputs><script><block s="doAsk"><l>What item would you like to delete?</l></block><block s="doDeleteFromList"><block s="getLastAnswer"></block><block var="shoppingList"/></block></script></block-definition><block-definition s="search" type="command" category="other"><header></header><code></code><translations></translations><inputs></inputs><script><block s="doAsk"><l>How many items do you want to search for?</l></block><block s="doRepeat"><block s="getLastAnswer"></block><script><block s="doAsk"><l>What do you want to search for?</l></block><block s="doSetVar"><l>index</l><l>1</l></block><block s="doSetVar"><l>onList?</l><block s="reportBoolean"><l><bool>false</bool></l></block></block><block s="doRepeat"><block s="reportListAttribute"><l><option>length</option></l><block var="shoppingList"/></block><script><block s="doIf"><block s="reportVariadicEquals"><list><block s="getLastAnswer"></block><block s="reportListItem"><block var="index"/><block var="shoppingList"/></block></list></block><script><block s="doSetVar"><l>onList?</l><block s="reportBoolean"><l><bool>true</bool></l></block></block><block s="doSayFor"><block s="reportJoinWords"><list><block s="getLastAnswer"></block><l> is on the list.</l></list></block><l>2</l></block></script><list></list></block><block s="doChangeVar"><l>index</l><l>1</l></block></script></block><block s="doIf"><block s="reportVariadicEquals"><list><block var="onList?"/><block s="reportBoolean"><l><bool>false</bool></l></block></list></block><script><block s="doSayFor"><block 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