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claudiainbytes/Array method .map()

Created April 28, 2018 22:39
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  1. claudiainbytes created this gist Apr 28, 2018.
    30 changes: 30 additions & 0 deletions Array method .map()
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    Original file line number Diff line number Diff line change
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    /* Using .map()
    *
    * Using the musicData array and .map():
    * - return a string for each item in the array in the following format
    * <album-name> by <artist> sold <sales> copies
    * - store the returned data in a new albumSalesStrings variable
    *
    * Note:
    * - do not delete the musicData variable
    * - do not alter any of the musicData content
    * - do not format the sales number, leave it as a long string of digits
    */

    const musicData = [
    { artist: 'Adele', name: '25', sales: 1731000 },
    { artist: 'Drake', name: 'Views', sales: 1608000 },
    { artist: 'Beyonce', name: 'Lemonade', sales: 1554000 },
    { artist: 'Chris Stapleton', name: 'Traveller', sales: 1085000 },
    { artist: 'Pentatonix', name: 'A Pentatonix Christmas', sales: 904000 },
    { artist: 'Original Broadway Cast Recording',
    name: 'Hamilton: An American Musical', sales: 820000 },
    { artist: 'Twenty One Pilots', name: 'Blurryface', sales: 738000 },
    { artist: 'Prince', name: 'The Very Best of Prince', sales: 668000 },
    { artist: 'Rihanna', name: 'Anti', sales: 603000 },
    { artist: 'Justin Bieber', name: 'Purpose', sales: 554000 }
    ];

    const albumSalesStrings = musicData.map( musician => `${musician.name} by ${musician.artist} sold ${musician.sales} copies`)

    console.log(albumSalesStrings);