<snapdata remixID="12248896"><project name="U3L1-ShoppingList_Empty to Students" app="Snap! 7, 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"><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></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></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="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="initializeSearchVariables" type="command" category="variables"><header></header><code></code><translations></translations><inputs></inputs><script><block s="doAsk"><l>What item would you like to search for?</l></block><block s="doSetVar"><l>temp</l><block s="getLastAnswer"></block></block><block s="doSetVar"><l>onList</l><block s="reportBoolean"><l><bool>false</bool></l></block></block><block s="doSetVar"><l>i</l><l>1</l></block><block s="doSetVar"><l>yesOrNo</l><l>0</l></block></script></block-definition><block-definition s="initializeAddVariables" type="command" category="variables"><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="doSetVar"><l>temp</l><block s="getLastAnswer"></block></block><block s="doSetVar"><l>i</l><l>1</l></block></script></block-definition><block-definition s="initializeClearVariables" type="command" category="variables"><header></header><code></code><translations></translations><inputs></inputs><script><block s="doSetVar"><l>i</l><l>1</l></block><block s="doSetVar"><l>onList</l><block s="reportBoolean"><l><bool>false</bool></l></block></block><block s="doSetVar"><l>yesOrNo</l><l>0</l></block><custom-block s="sureAboutDeleting"><comment w="90" collapsed="false">This asks the user if they intended to press the clear list button. </comment></custom-block></script></block-definition><block-definition s="searchForItem" type="command" category="variables"><header></header><code></code><translations></translations><inputs></inputs><script><block s="doRepeat"><block s="reportListAttribute"><l><option>length</option></l><block var="shoppingList"/></block><script><block s="doIfElse"><block s="reportEquals"><block var="temp"/><block s="reportListItem"><block var="i"/><block var="shoppingList"/></block></block><script><block s="doSetVar"><l>onList</l><block s="reportBoolean"><l><bool>true</bool></l></block></block></script><script><block s="doSetVar"><l>i</l><block s="reportVariadicSum"><list><block var="i"/><l>1</l></list></block></block></script></block></script></block></script></block-definition><block-definition s="displayItemOnList" type="command" category="looks"><header></header><code></code><translations></translations><inputs></inputs><script><block s="doIfElse"><block s="reportEquals"><block var="onList"/><block s="reportBoolean"><l><bool>true</bool></l></block></block><script><block s="doSayFor"><block s="reportJoinWords"><list><block var="temp"/><l> is in the list!</l></list></block><l>2</l></block></script><script><block s="doSayFor"><block s="reportJoinWords"><list><block var="temp"/><l> is not in the list!</l></list></block><l>2</l></block><block s="doAsk"><l>Would you like to add this item to the list? (Answer "yes "or "no")</l></block><block s="doSetVar"><l>yesOrNo</l><block s="getLastAnswer"></block></block></script></block></script></block-definition><block-definition s="addExtraItem" type="command" category="variables"><header></header><code></code><translations></translations><inputs></inputs><script><block s="doIf"><block s="reportEquals"><block var="yesOrNo"/><l>yes</l></block><script><block s="doAddToList"><block var="temp"/><block var="shoppingList"/></block></script></block></script></block-definition><block-definition s="initializeDeleteVariables" type="command" category="variables"><header></header><code></code><translations></translations><inputs></inputs><script><block s="doAsk"><l>What item would you like to delete?</l></block><block s="doSetVar"><l>temp</l><block s="getLastAnswer"></block></block><block s="doSetVar"><l>onList</l><block s="reportBoolean"><l><bool>false</bool></l></block></block><block s="doSetVar"><l>i</l><l>1</l></block></script></block-definition><block-definition s="deleteItem" type="command" category="variables"><header></header><code></code><translations></translations><inputs></inputs><script><block s="doIfElse"><block s="reportEquals"><block var="onList"/><block s="reportBoolean"><l><bool>true</bool></l></block></block><script><block s="doDeleteFromList"><block var="i"/><block var="shoppingList"/></block></script><script><block s="doSayFor"><l>That item is not on the list!</l><l>2</l></block></script></block></script></block-definition><block-definition s="sureAboutDeleting" type="command" category="variables"><header></header><code></code><translations></translations><inputs></inputs><script><block s="doAsk"><l>Are you sure you want to clear the list? (Answer with a "yes" or a "no")</l></block><block s="doSetVar"><l>yesOrNo</l><block s="getLastAnswer"></block></block><block s="doIfElse"><block s="reportEquals"><block var="yesOrNo"/><l>yes</l></block><script><block s="doSetVar"><l>shoppingList</l><block s="reportNewList"><list></list></block></block></script><script><block s="doSayFor"><l>Okay, the list wasn&apos;t deleted. </l><l>2</l></block></script></block></script></block-definition></blocks><stage name="Stage" width="480" height="360" costume="0" color="255,255,255,1" tempo="60" threadsafe="false" penlog="false" volume="100" pan="0" lines="round" ternary="true" hyperops="true" codify="false" inheritance="false" sublistIDs="false" id="713"><pentrails>data:image/png;base64,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</pentrails><costumes><list struct="atomic" id="714"></list></costumes><sounds><list struct="atomic" id="715"></list></sounds><variables></variables><blocks></blocks><scripts></scripts><sprites select="3"><sprite name="Add Item" idx="1" x="0" y="49.99999999999997" heading="90" scale="1" volume="100" pan="0" rotation="1" draggable="true" costume="1" color="80,80,80,1" pen="tip" id="720"><costumes><list id="721"><item><ref mediaID="Add Item_cst_shopping-list-button-add-item"></ref></item></list></costumes><sounds><list struct="atomic" id="722"></list></sounds><blocks></blocks><variables></variables><scripts><script x="209" y="177.4999999999999"><block s="receiveInteraction"><l><option>clicked</option></l></block><custom-block s="initializeAddVariables"><comment w="90" collapsed="true">Initializes variables, and asks the user what item they would want added to the list. </comment></custom-block><block s="doAddToList"><block var="temp"/><block var="shoppingList"/></block></script></scripts></sprite><sprite name="Delete Item" idx="4" x="0" y="-100" heading="90" scale="1" volume="100" pan="0" rotation="1" draggable="true" costume="1" color="173.4,31.211999999999993,0,1" pen="tip" id="732"><costumes><list id="733"><item><ref mediaID="Delete Item_cst_shopping-list-button-delete-item"></ref></item></list></costumes><sounds><list struct="atomic" id="734"></list></sounds><blocks></blocks><variables></variables><scripts><script x="112" y="27.500000000000114"><block s="receiveInteraction"><l><option>clicked</option></l></block><custom-block s="initializeDeleteVariables"><comment w="90" collapsed="true"> Initializes variables and asks the user what item they would like added to the list. </comment></custom-block><custom-block s="searchForItem"><comment w="90" collapsed="true">Traverses list to search for item and determine whether it is in the list or not. </comment></custom-block><custom-block s="deleteItem"><comment w="90" collapsed="true">If the item is in the list, the item is removed, if the item is not in the list, the program says that the item isn&apos;t in the list. </comment></custom-block></script></scripts></sprite><sprite name="Search" idx="3" x="0" y="-50.00000000000006" heading="90" scale="1" volume="100" pan="0" rotation="1" draggable="true" costume="1" color="140.25,33.660000000000004,0,1" pen="tip" id="743"><costumes><list id="744"><item><ref mediaID="Search_cst_shopping-list-button-search"></ref></item></list></costumes><sounds><list struct="atomic" id="745"></list></sounds><blocks></blocks><variables></variables><scripts><script x="100" y="50.16666666666623"><block s="receiveInteraction"><l><option>clicked</option></l></block><custom-block s="initializeSearchVariables"><comment w="90" collapsed="true">Initializes variables for the Search sprite, and asks what item the user would like to search for.</comment></custom-block><custom-block s="searchForItem"><comment w="90" collapsed="true">Uses iteration to search the shoppingList list to identify if the item is on the list or not. </comment></custom-block><custom-block s="displayItemOnList"><comment w="90" collapsed="true">Displays whether the item is on the list or not, if not, it asks the user if they would like for the item to be added to the list</comment></custom-block><custom-block s="addExtraItem"><comment w="90" collapsed="true">If the user wants to add the item to list, it adds the item to the list.</comment></custom-block></script></scripts></sprite><sprite name="Clear List" idx="2" x="0" y="0" heading="90" scale="1" volume="100" pan="0" rotation="1" draggable="true" costume="1" color="0,137.70000000000002,38.55600000000003,1" pen="tip" id="755"><costumes><list id="756"><item><ref mediaID="Clear List_cst_shopping-list-button-clear-list"></ref></item></list></costumes><sounds><list struct="atomic" id="757"></list></sounds><blocks></blocks><variables></variables><scripts><script x="134" y="44.33333333333334"><block s="receiveInteraction"><l><option>clicked</option></l></block><custom-block s="initializeClearVariables"><comment w="90" collapsed="false">Clears list shoppingList by setting list to a blank list. </comment></custom-block></script></scripts></sprite><sprite name="Sprite" idx="5" x="-132" y="-130" heading="90" scale="1" volume="100" pan="0" rotation="1" draggable="true" hidden="true" costume="0" color="0,81.60000000000001,42.432,1" pen="tip" id="764"><costumes><list struct="atomic" id="765"></list></costumes><sounds><list struct="atomic" id="766"></list></sounds><blocks></blocks><variables></variables><scripts><script x="153" y="50.000000000000085"><block s="hide"></block><block s="doSetVar"><l>shoppingList</l><block s="reportNewList"><list></list></block></block><block s="doSetVar"><l>temp</l><l>0</l></block><block s="doSetVar"><l>i</l><l>1</l></block></script></scripts></sprite><watcher var="shoppingList" style="normal" x="10" y="10" color="243,118,29" extX="80" extY="70"/><watcher var="temp" style="normal" x="10" y="117.000002" color="243,118,29"/><watcher var="onList" style="normal" x="10" y="138.000004" color="243,118,29"/><watcher var="i" style="normal" x="10" y="159.00000599999998" color="243,118,29"/><watcher var="yesOrNo" style="normal" x="10" y="180.00000799999998" color="243,118,29"/></sprites></stage><variables><variable name="shoppingList"><list struct="atomic" id="789"></list></variable><variable name="temp"><l>things</l></variable><variable name="onList"><bool>true</bool></variable><variable name="i"><l>1</l></variable><variable name="yesOrNo"><l>0</l></variable></variables></scene></scenes></project><media name="U3L1-ShoppingList_Empty to Students" app="Snap! 7, https://snap.berkeley.edu" version="2"><costume name="shopping-list-button-add-item" center-x="53" center-y="15" 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