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javascript complex literal

Energetic Emu answered on April 27, 2022 Popularity 1/10 Helpfulness 1/10

answer javascript complex literal

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javascript complex literal

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// Setup
var recordCollection = {
  2548: {
    albumTitle: 'Slippery When Wet',
    artist: 'Bon Jovi',
    tracks: ['Let It Rock', 'You Give Love a Bad Name']
  },
  2468: {
    albumTitle: '1999',
    artist: 'Prince',
    tracks: ['1999', 'Little Red Corvette']
  },
  1245: {
    artist: 'Robert Palmer',
    tracks: []
  },
  5439: {
    albumTitle: 'ABBA Gold'
  }
};

// Only change code below this line
function updateRecords(records, id, prop, value) {
  if (prop !== 'tracks' && value !== "") {
    records[id][prop] = value;
  } else if (prop === "tracks" && records[id].hasOwnProperty("tracks") === false) {
    records[id][prop] = [value];
  } else if (prop === "tracks" && value !== "") {
    records[id][prop].push(value);
  } else if (value === "") {
    delete records[id][prop];
  }
  return records;
}

updateRecords(recordCollection, 5439, 'artist', 'ABBA');

Popularity 1/10 Helpfulness 1/10 Language javascript

Source: forum.freecodecamp.org

Tags: javascript

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Contributed on Apr 27 2022

Energetic Emu

0 Answers Avg Quality 2/10

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javascript complex literal 2

Comment

var recordCollection = {
  2548: {
    albumTitle: 'Slippery When Wet',
    artist: 'Bon Jovi',
    tracks: ['Let It Rock', 'You Give Love a Bad Name']
  },
  2468: {
    albumTitle: '1999',
    artist: 'Prince',
    tracks: ['1999', 'Little Red Corvette']
  },
  1245: {
    artist: 'Robert Palmer',
    tracks: []
  },
  5439: {
    albumTitle: 'ABBA Gold'
  }
};

// Only change code below this line
function updateRecords(records, id, prop, value) {
  if (value === '') {
    delete records[id][prop];
  } else if (prop === 'tracks') {
    records[id][prop] = records[id][prop] || []; // this is called shortcircuit evaluation, see below for explanation
    records[id][prop].push(value);
  } else {
    records[id][prop] = value;
  }
  return records;
}

Popularity 1/10 Helpfulness 1/10 Language javascript

Source: forum.freecodecamp.org

Tags: javascript

Link to this answer
Share Copy Link

Contributed on Apr 27 2022

Energetic Emu

0 Answers Avg Quality 2/10

javascript complex literal

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javascript complex literal

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