diff --git a/seed/challenges/01-front-end-development-certification/advanced-bonfires.json b/seed/challenges/01-front-end-development-certification/advanced-bonfires.json index 3ed7bf6ff89..e1e48a960c6 100644 --- a/seed/challenges/01-front-end-development-certification/advanced-bonfires.json +++ b/seed/challenges/01-front-end-development-certification/advanced-bonfires.json @@ -78,6 +78,92 @@ "Ricorda di usare Leggi-Cerca-Chiedi se rimani bloccato. Prova a programmare in coppia. Scrivi il codice da te." ] }, + { + "id": "56533eb9ac21ba0edf2244cf", + "title": "Record Collection", + "description": [ + "You are given a JSON object representing a part of your musical album collection. Each album has several properties and a unique id number as its key. Not all albums have complete information.", + "Write a function which takes an album's id (like 2548), a property prop (like \"artist\" or \"tracks\"), and a value (like \"Addicted to Love\") to modify the data in this collection.", + "If prop isn't \"tracks\" and value isn't empty (\"\"), update or set the value for that record album's property.", + "Your function must always return the entire collection object.", + "There are several rules for handling incomplete data:", + "If prop is \"tracks\" but the album doesn't have a \"tracks\" property, create an empty array before adding the new value to the album's corresponding property.", + "If prop is \"tracks\" and value isn't empty (\"\"), push the value onto the end of the album's existing tracks array.", + "If value is empty (\"\"), delete the given prop property from the album.", + "Hints
Use bracket notation when accessing object properties with variables.", + "Push is an array method you can read about on Mozilla Developer Network.", + "You may refer back to Manipulating Complex Objects Introducing JavaScript Object Notation (JSON) for a refresher." + ], + "releasedOn": "January 1, 2016", + "challengeSeed": [ + "// Setup", + "var collection = {", + " \"2548\": {", + " \"album\": \"Slippery When Wet\",", + " \"artist\": \"Bon Jovi\",", + " \"tracks\": [ ", + " \"Let It Rock\", ", + " \"You Give Love a Bad Name\" ", + " ]", + " },", + " \"2468\": {", + " \"album\": \"1999\",", + " \"artist\": \"Prince\",", + " \"tracks\": [ ", + " \"1999\", ", + " \"Little Red Corvette\" ", + " ]", + " },", + " \"1245\": {", + " \"artist\": \"Robert Palmer\",", + " \"tracks\": [ ]", + " },", + " \"5439\": {", + " \"album\": \"ABBA Gold\"", + " }", + "};", + "// Keep a copy of the collection for tests", + "var collectionCopy = JSON.parse(JSON.stringify(collection));", + "", + "// Only change code below this line", + "function updateRecords(id, prop, value) {", + " ", + " ", + " return collection;", + "}", + "", + "// Alter values below to test your code", + "updateRecords(5439, \"artist\", \"ABBA\");", + "" + ], + "tail": [ + ";(function(x) { return \"collection = \\n\" + JSON.stringify(x, '\\n', 2); })(collection);" + ], + "solutions": [ + "var collection = {\n 2548: {\n album: \"Slippery When Wet\",\n artist: \"Bon Jovi\",\n tracks: [ \n \"Let It Rock\", \n \"You Give Love a Bad Name\" \n ]\n },\n 2468: {\n album: \"1999\",\n artist: \"Prince\",\n tracks: [ \n \"1999\", \n \"Little Red Corvette\" \n ]\n },\n 1245: {\n artist: \"Robert Palmer\",\n tracks: [ ]\n },\n 5439: {\n album: \"ABBA Gold\"\n }\n};\n// Keep a copy of the collection for tests\nvar collectionCopy = JSON.parse(JSON.stringify(collection));\n\n// Only change code below this line\nfunction updateRecords(id, prop, value) {\n if(value === \"\") delete collection[id][prop];\n else if(prop === \"tracks\") {\n collection[id][prop] = collection[id][prop] || [];\n collection[id][prop].push(value);\n } else {\n collection[id][prop] = value;\n }\n \n return collection;\n}" + ], + "tests": [ + "collection = collectionCopy; assert(updateRecords(5439, \"artist\", \"ABBA\")[5439][\"artist\"] === \"ABBA\", 'message: After updateRecords(5439, \"artist\", \"ABBA\"), artist should be \"ABBA\"');", + "assert(updateRecords(5439, \"tracks\", \"Take a Chance on Me\")[5439][\"tracks\"].pop() === \"Take a Chance on Me\", 'message: After updateRecords(5439, \"tracks\", \"Take a Chance on Me\"), tracks should have \"Take a Chance on Me\" as the last element.');", + "updateRecords(2548, \"artist\", \"\"); assert(!collection[2548].hasOwnProperty(\"artist\"), 'message: After updateRecords(2548, \"artist\", \"\"), artist should not be set');", + "assert(updateRecords(1245, \"tracks\", \"Addicted to Love\")[1245][\"tracks\"].pop() === \"Addicted to Love\", 'message: After updateRecords(1245, \"tracks\", \"Addicted to Love\"), tracks should have \"Addicted to Love\" as the last element.');", + "assert(updateRecords(2468, \"tracks\", \"Free\")[2468][\"tracks\"][0] === \"1999\", 'message: After updateRecords(2468, \"tracks\", \"Free\"), tracks should have \"1999\" as the first element.');", + "updateRecords(2548, \"tracks\", \"\"); assert(!collection[2548].hasOwnProperty(\"tracks\"), 'message: After updateRecords(2548, \"tracks\", \"\"), tracks should not be set');" + ], + "type": "bonfire", + "challengeType": 5, + "titleEs": "Colección de registros", + "descriptionEs": [ + "Se te da un objeto que representa (una pequeña parte de) tu colección de grabaciones. Cada álbum es identificado por un número id único y tiene varias propiedades. No todos los álbumes tienen la información completa.", + "Escribe una función que reciba un id, una propiedad (prop) y un valor (value).", + "Para el id dado, en la colección collection:", + "Si el valor value no está en blanco (value !== \"\") y prop no es \"tracks\" entonces actualiza o establece el valor de la propiedad prop.", + "Si la propiedad prop es \"tracks\" y value no está en blanco, empuja (push) el valor value al final del vector tracks.", + "Si el valor value está en blanco, elimina esa prop.", + "Siempre retorna el objeto collection entero.", + "Nota
No olvides usar notación corchete cuando accedes a propiedades de objetos con variables." + ] + }, { "id": "a3f503de51cf954ede28891d", "title": "Symmetric Difference", @@ -524,4 +610,4 @@ ] } ] -} +} \ No newline at end of file diff --git a/seed/challenges/01-front-end-development-certification/basic-javascript.json b/seed/challenges/01-front-end-development-certification/basic-javascript.json index e673e9bda0f..9f4251b8eba 100644 --- a/seed/challenges/01-front-end-development-certification/basic-javascript.json +++ b/seed/challenges/01-front-end-development-certification/basic-javascript.json @@ -4534,92 +4534,6 @@ "Recupera el segundo arbol de la variable myPlants usando notación punto para objetos y notación corchete para vectores." ] }, - { - "id": "56533eb9ac21ba0edf2244cf", - "title": "Record Collection", - "description": [ - "You are given a JSON object representing a part of your musical album collection. Each album has several properties and a unique id number as its key. Not all albums have complete information.", - "Write a function which takes an album's id (like 2548), a property prop (like \"artist\" or \"tracks\"), and a value (like \"Addicted to Love\") to modify the data in this collection.", - "If prop isn't \"tracks\" and value isn't empty (\"\"), update or set the value for that record album's property.", - "Your function must always return the entire collection object.", - "There are several rules for handling incomplete data:", - "If prop is \"tracks\" but the album doesn't have a \"tracks\" property, create an empty array before adding the new value to the album's corresponding property.", - "If prop is \"tracks\" and value isn't empty (\"\"), push the value onto the end of the album's existing tracks array.", - "If value is empty (\"\"), delete the given prop property from the album.", - "Hints
Use bracket notation when accessing object properties with variables.", - "Push is an array method you can read about on Mozilla Developer Network.", - "You may refer back to Manipulating Complex Objects Introducing JavaScript Object Notation (JSON) for a refresher." - ], - "releasedOn": "January 1, 2016", - "challengeSeed": [ - "// Setup", - "var collection = {", - " \"2548\": {", - " \"album\": \"Slippery When Wet\",", - " \"artist\": \"Bon Jovi\",", - " \"tracks\": [ ", - " \"Let It Rock\", ", - " \"You Give Love a Bad Name\" ", - " ]", - " },", - " \"2468\": {", - " \"album\": \"1999\",", - " \"artist\": \"Prince\",", - " \"tracks\": [ ", - " \"1999\", ", - " \"Little Red Corvette\" ", - " ]", - " },", - " \"1245\": {", - " \"artist\": \"Robert Palmer\",", - " \"tracks\": [ ]", - " },", - " \"5439\": {", - " \"album\": \"ABBA Gold\"", - " }", - "};", - "// Keep a copy of the collection for tests", - "var collectionCopy = JSON.parse(JSON.stringify(collection));", - "", - "// Only change code below this line", - "function updateRecords(id, prop, value) {", - " ", - " ", - " return collection;", - "}", - "", - "// Alter values below to test your code", - "updateRecords(5439, \"artist\", \"ABBA\");", - "" - ], - "tail": [ - ";(function(x) { return \"collection = \\n\" + JSON.stringify(x, '\\n', 2); })(collection);" - ], - "solutions": [ - "var collection = {\n 2548: {\n album: \"Slippery When Wet\",\n artist: \"Bon Jovi\",\n tracks: [ \n \"Let It Rock\", \n \"You Give Love a Bad Name\" \n ]\n },\n 2468: {\n album: \"1999\",\n artist: \"Prince\",\n tracks: [ \n \"1999\", \n \"Little Red Corvette\" \n ]\n },\n 1245: {\n artist: \"Robert Palmer\",\n tracks: [ ]\n },\n 5439: {\n album: \"ABBA Gold\"\n }\n};\n// Keep a copy of the collection for tests\nvar collectionCopy = JSON.parse(JSON.stringify(collection));\n\n// Only change code below this line\nfunction updateRecords(id, prop, value) {\n if(value === \"\") delete collection[id][prop];\n else if(prop === \"tracks\") {\n collection[id][prop] = collection[id][prop] || [];\n collection[id][prop].push(value);\n } else {\n collection[id][prop] = value;\n }\n \n return collection;\n}" - ], - "tests": [ - "collection = collectionCopy; assert(updateRecords(5439, \"artist\", \"ABBA\")[5439][\"artist\"] === \"ABBA\", 'message: After updateRecords(5439, \"artist\", \"ABBA\"), artist should be \"ABBA\"');", - "assert(updateRecords(5439, \"tracks\", \"Take a Chance on Me\")[5439][\"tracks\"].pop() === \"Take a Chance on Me\", 'message: After updateRecords(5439, \"tracks\", \"Take a Chance on Me\"), tracks should have \"Take a Chance on Me\" as the last element.');", - "updateRecords(2548, \"artist\", \"\"); assert(!collection[2548].hasOwnProperty(\"artist\"), 'message: After updateRecords(2548, \"artist\", \"\"), artist should not be set');", - "assert(updateRecords(1245, \"tracks\", \"Addicted to Love\")[1245][\"tracks\"].pop() === \"Addicted to Love\", 'message: After updateRecords(1245, \"tracks\", \"Addicted to Love\"), tracks should have \"Addicted to Love\" as the last element.');", - "assert(updateRecords(2468, \"tracks\", \"Free\")[2468][\"tracks\"][0] === \"1999\", 'message: After updateRecords(2468, \"tracks\", \"Free\"), tracks should have \"1999\" as the first element.');", - "updateRecords(2548, \"tracks\", \"\"); assert(!collection[2548].hasOwnProperty(\"tracks\"), 'message: After updateRecords(2548, \"tracks\", \"\"), tracks should not be set');" - ], - "type": "checkpoint", - "challengeType": 1, - "titleEs": "Colección de registros", - "descriptionEs": [ - "Se te da un objeto que representa (una pequeña parte de) tu colección de grabaciones. Cada álbum es identificado por un número id único y tiene varias propiedades. No todos los álbumes tienen la información completa.", - "Escribe una función que reciba un id, una propiedad (prop) y un valor (value).", - "Para el id dado, en la colección collection:", - "Si el valor value no está en blanco (value !== \"\") y prop no es \"tracks\" entonces actualiza o establece el valor de la propiedad prop.", - "Si la propiedad prop es \"tracks\" y value no está en blanco, empuja (push) el valor value al final del vector tracks.", - "Si el valor value está en blanco, elimina esa prop.", - "Siempre retorna el objeto collection entero.", - "Nota
No olvides usar notación corchete cuando accedes a propiedades de objetos con variables." - ] - }, { "id": "cf1111c1c11feddfaeb5bdef", "title": "Iterate with JavaScript For Loops",