2c:null 2d:["$","title",null,{"children":"Exercices - Rappels JavaScript | Alain Roan | Observable"}] 32:[] 30:{"id":"7ea19cc14f9bf51d","slug":"exercicesviry","title":"Exercices - Rappels JavaScript","thumbnail":"bbb8a866a903ea8ad44c1e4a3c9f2dd717c28caf62990c0cf304559de31b5b5b","access_level":"public","create_time":"$D2024-07-05T11:25:56.618Z","update_time":"$D2024-07-05T11:25:56.618Z","view_time":null,"first_public_time":"$D2024-07-05T11:25:56.618Z","has_unpublished_edits":null,"fork":{"id":"acdfe371bdb779d0","slug":"rappels-javascript-exercices","title":"Exercices - Rappels JavaScript","owner":{"id":"daf0693188c7d3b6","login":"sd-progwebdataviz","name":"BUT SD - Cours Programmation Web Dataviz"}},"stars":1,"starred":false,"owner":{"type":"team","id":"f8fce27399341cf5","login":"alainro","name":"Alain Roan","avatar_url":"https://avatars-next.observableusercontent.com/877e36b5e75080b8597092e60b8898e6742bba1f4f7ba12f909dbeae5228fce3","tier":"starter_2024","bio":"DataViz, Dashboard, Observable Ambassador and Notion Certified"},"version":121,"publish_version":null,"role":null,"authored":false,"authors":[{"type":"individual","id":"1e78bb64fcda4384","login":"alainro","name":"Alain Roan","avatar_url":"https://avatars-next.observableusercontent.com/877e36b5e75080b8597092e60b8898e6742bba1f4f7ba12f909dbeae5228fce3","tier":null,"bio":"DataViz, Dashboard, KPI, Observable mentor"}],"members":[{"type":"individual","id":"1e78bb64fcda4384","login":"alainro","name":"Alain Roan","avatar_url":"https://avatars-next.observableusercontent.com/877e36b5e75080b8597092e60b8898e6742bba1f4f7ba12f909dbeae5228fce3","tier":null,"role":"editor"},{"type":"team","id":"f8fce27399341cf5","login":"alainro","name":"Alain Roan","avatar_url":"https://avatars-next.observableusercontent.com/877e36b5e75080b8597092e60b8898e6742bba1f4f7ba12f909dbeae5228fce3","tier":"starter_2024","role":"editor"}],"comments":[],"custom_thumbnail":false,"trashed":false,"lapsed":null,"subscribed":null,"forks":0,"collection":{"id":"a7130242a846b9ab","slug":"ynov","title":"Ynov","owner":{"id":"f8fce27399341cf5","login":"alainro","name":"Alain Roan"}},"type":"notebook","body":{"titling":"auto","title":"Exercices - Rappels JavaScript","cells":[{"id":0,"value":"# Exercices - Rappels JavaScript","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":86,"value":"

Support de cours pour les étudiants 2023-2024 de 3ème année du BUT Science des données de l'IUT2 (Université Grenoble Alpes).

\n\nIntervenant : Matthieu Viry

\nVoir l'ensemble de notebooks ici.\n\n

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Mais il est aussi utilisé dans de nombreux environnements extérieurs aux navigateurs web tels que Node.js, Apache CouchDB voire Adobe Acrobat. Le code JavaScript est interprété ou compilé à la volée. C'est un langage à objets utilisant le concept de prototype, disposant d'un typage faible et dynamique qui permet de programmer suivant plusieurs paradigmes de programmation : fonctionnelle, impérative et orientée objet.\"","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":18,"value":"// Réponse ici","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":13,"value":"**2)** Créer un tableau contenant les mots contenus dans la variable `paragraph`. Stocker le résultat dans une variable nommée `words`.","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":26,"value":"// Réponse ici","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":27,"value":"**3)** Combien de mots y-a-t'il au total ?","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":30,"value":"// Réponse ici","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":32,"value":"**4)** Comment accéder au second mot de `paragraph` ?","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":35,"value":"// Réponse ici","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":41,"value":"**5)** La variable suivante contient le même paragraphe, sans les signes de ponctuations. Combien de mots uniques s'y trouvent ?","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":42,"value":"p2 = paragraph.replace(/[,.:;]/g, \"\")","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":47,"value":"// Réponse ici","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":48,"value":"**6)** Comment obtenir la valeur correspondant à la clé \"milk\" dans l'objet `prices` ?","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":51,"value":"prices = ({\n milk: 3.45,\n crackers: 4.54,\n pepsi: 1.00,\n chips: 2.98,\n})","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":57,"value":"// Réponse ici","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":59,"value":"**7)** Comment obtenir la valeur, dans l'objet `prices` correspondant à la clé contenue dans la variable `key` ?","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":62,"value":"key = 'chips'","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":64,"value":"// Réponse ici","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":66,"value":"**8)** Comment convertir ce tableau de paires de clés-valeurs en un `Object` ?","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":69,"value":"kv = [\n [\"Pier\", 30],\n [\"Rosa\", 80],\n [\"Luke\", 98],\n [\"Mike\", 29]\n]","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":71,"value":"// Réponse ici","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":73,"value":"**9)** Comment faire pour obtenir pour obtenir un nouveau tableau contenant les valeurs contenu dans le tableau `values`, sans doublons ?","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"},{"id":100,"value":"values = [1, 4, 8, 10, 1, 3, 2, 8, 9, 10, 2, 21, 16, 21, 1, 4, 13, 10, 12, 4, 8, 12, 13, 21, 9, 0]","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":102,"value":"// Réponse ici","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":104,"value":"**10)** Écrivez une fonction nommée `counter` qui prend un argument, un tableau, et qui retourne un objet contenant le nombre d’occurrences de chaque entrée du tableau. Si vous appelez cette fonction sur le tableau `values` définis plus haut, vous devez obtenir la réponse suivante :\n\n```js\ncounter(values)\n```\n```js\n{\n 0: 1,\n 1: 3,\n 2: 2,\n 3: 1,\n 4: 3,\n 8: 3,\n 9: 2,\n 10: 3,\n 12: 2,\n 13: 2,\n 16: 1,\n 21: 3\n}\n```","pinned":false,"hidden":false,"mode":"md","author":"$undefined","summary":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"","database":"$undefined"}],"files":"$W32","stdlib":"1"}} 31:"$30:body"