Created
February 10, 2019 22:27
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JS Bin // source https://jsbin.com/zuxoteq
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <meta name="viewport" content="width=device-width"> | |
| <title>JS Bin</title> | |
| </head> | |
| <body> | |
| <script id="jsbin-javascript"> | |
| 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" | |
| } | |
| }; | |
| var collectionCopy = JSON.parse(JSON.stringify(collection)); | |
| function updateRecords(id, prop, value) { | |
| if (prop !== "tracks" && value !== "") { | |
| collection[id][prop] = value; | |
| } else if (prop === "tracks" && collection.hasOwnProperty("tracks") === false) { | |
| collection[id][prop] = [value]; | |
| } else if (prop === "tracks" && value !== "") { | |
| collection[id][prop].push(value); | |
| } | |
| if (value === "") { | |
| delete collection[id][prop]; | |
| } | |
| return collection; | |
| } | |
| // Alter values below to test your code | |
| console.log(updateRecords(2468, "tracks", "Free")); | |
| </script> | |
| <script id="jsbin-source-javascript" type="text/javascript">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" | |
| } | |
| }; | |
| var collectionCopy = JSON.parse(JSON.stringify(collection)); | |
| function updateRecords(id, prop, value) { | |
| if (prop !== "tracks" && value !== "") { | |
| collection[id][prop] = value; | |
| } else if (prop === "tracks" && collection.hasOwnProperty("tracks") === false) { | |
| collection[id][prop] = [value]; | |
| } else if (prop === "tracks" && value !== "") { | |
| collection[id][prop].push(value); | |
| } | |
| if (value === "") { | |
| delete collection[id][prop]; | |
| } | |
| return collection; | |
| } | |
| // Alter values below to test your code | |
| console.log(updateRecords(2468, "tracks", "Free")); | |
| </script></body> | |
| </html> |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| 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" | |
| } | |
| }; | |
| var collectionCopy = JSON.parse(JSON.stringify(collection)); | |
| function updateRecords(id, prop, value) { | |
| if (prop !== "tracks" && value !== "") { | |
| collection[id][prop] = value; | |
| } else if (prop === "tracks" && collection.hasOwnProperty("tracks") === false) { | |
| collection[id][prop] = [value]; | |
| } else if (prop === "tracks" && value !== "") { | |
| collection[id][prop].push(value); | |
| } | |
| if (value === "") { | |
| delete collection[id][prop]; | |
| } | |
| return collection; | |
| } | |
| // Alter values below to test your code | |
| console.log(updateRecords(2468, "tracks", "Free")); |
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